GENERAL SANTOS, Philippines — Rescuers searched ruined buildings in the southern Philippines on Tuesday to ensure no one was still trapped a day after one of the strongest earthquakes to hit the country in a half-century killed at least 37 people and displaced more than 32,000.

Only four people were considered missing on official records in the southern provinces near where the 7.8 magnitude quake struck Monday morning, but the Office of Civil Defense acknowledged several collapsed and heavily damaged buildings must be thoroughly inspected for possible survivors or casualties.

The earthquake centered off Mindanao, the second most populous Philippine island, injured nearly 500 people and displaced more than 32,000, most of whom fled to emergency shelters.

Many people who left their homes feared a tsunami. Waves up to 1.4-meters (4.6-feet) above tide level were measured in the Philippines, but the only tsunami damage reported was to six shanties on stilts in a coastal village. Smaller waves washed ashore in Indonesia and Palau and as far away as southern Japan.

Landslides and building collapses caused several deaths

The earthquake left a trail of destruction, including in General Santos, a lively coastal city of more than 700,000 people known as the country’s tuna capital, where at least 13 people were killed in collapsed buildings and due to falling debris.

At least 18 died in Sarangani province, mostly in a landslide that buried houses in the mountainside town of Glan, according to Rafaelito Alejandro of the Office of Civil Defense.

The other deaths were reported in the southern provinces of South Cotabato and Davao Occidental, and on Balut Island, disaster response officials said.

About 2,500 houses and 117 government buildings and facilities were damaged in several provinces, according to an initial government damage assessment. The international airport in General Santos remained shut for a second day, forcing the cancellation of 63 domestic flights except for those on humanitarian missions.

About 6,000 public school buildings in quake-hit provinces must be assessed before classes can resume. The quake struck on the first day of classes nationwide after a two-month summer break, and many who sustained injuries were young students who had gathered with excitement for morning flag-raising ceremonies.

Authorities have warned that buildings that sustained cracks could collapse due to aftershocks, some of them dangerously powerful.

“We cannot force the immediate reopening of schools because we have to ensure the integrity of the buildings,” Alejandro said.

It was the strongest Philippine quake since 1976

Monday’s earthquake was centered at sea at a depth of 33 kilometers (20 miles), about 32 kilometers (20 miles) southwest of Maasim town in Sarangani province.

It was set off by movement in the Cotabato Trench and was the strongest since the same undersea depression triggered an 8.1-magnitude quake that whipped up tsunami waves on Aug. 17, 1976, said Teresito Bacolcol, the director of the Philippine Institute of Volcanology and Seismology.

About 8,000 people died from that quake and tsunami waves of up to 8 to 10 meters (26 to 33 feet) that engulfed several towns and provinces, Bacolcol said.

The Philippine seismological institute was scheduled to commemorate the anniversary of the 1976 quake and tsunami in August by installing markers to remind vulnerable towns and cities of the need for constant vigilance, Bacolcol told The Associated Press.

A 1990 earthquake that also had a magnitude of 7.8 left more than 1,000 people dead, injured thousands and caused extensive damages in northern provinces and cities.

President Ferdinand Marcos Jr. deployed top defense-mitigation officials from Manila to help oversee search and rescue, the distribution of tens of thousands of food packs and construction materials to quake victims and assess damage to bridges, roads and other infrastructure.

The United States, a treaty ally of the Philippines, said it was coordinating with Manila and was ready to support Philippine response efforts. France, Japan and New Zealand also expressed support.

The Philippines is often hit by earthquakes and volcanic eruptions due to its location on the Pacific “Ring of Fire,” an arc of seismic faults around the ocean.

The archipelago is also battered by about 20 typhoons and tropical storms each year, making it one of the world’s most disaster-prone countries.

Ukraine is ready to share drone technology with Nordic and Baltic countries, Zelenskyy says

TALLINN, Estonia — Ukrainian President Volodymyr Zelenskyy met with Nordic and Baltic leaders who were in Estonia for a regional summit Tuesday, a visit that comes amid friction over Ukrainian drones straying into the region in recent months.

The drones have crashed into the chimney of a power plant in Estonia, hit empty fuel tanks in Latvia and been shot down by Romanian fighter jets stationed in Lithuania. Ukrainian officials apologized, saying the drones had been aimed at military targets in Russia but were sent off course by Russian electronic interference.

Estonia hosted the summit in its capital of Tallinn amid Russia’s 4-year-old, full-scale invasion of Ukraine. Estonia holds the rotating presidency of the NB8, a regional grouping of the five Nordic and three Baltic countries, and brought together the bloc’s prime ministers, along with Zelenskyy.

Sharing Ukraine’s drone expertise

Zelenskyy and Estonian President Alar Karis agreed to work on cheaper ways to shoot down drones that have flown over Estonia, including one that a NATO fighter jet shot down over the south of the country in May.

“We have shown that we can shoot the drones down with the planes,” Karis said at a news conference. Using fighter jets to shoot down the drones is expensive, he added, so he hopes to partner with Ukraine for its technology and expertise to do it more cheaply.

Zelenskyy said Ukraine was ready to do so, drawing on its experience with helping countries in the Middle East shoot down drones, where it had sent experts to train local forces. “We did this in the Middle East, and it worked,” he said.

He said Ukraine could offer the low-cost interceptor drones it has deployed at home to build an inexpensive shield against Russian drone attacks, and that Kyiv could send experts to its European partners “at any moment.”

Karis said he expects drones to cross into Baltic airspace as the war continues and urged the public to remain calm. Estonia and the other Baltic nations are among Ukraine’s staunchest supporters in its war against Russia.

Ukraine’s bid for EU membership

Zelenskyy said his talks with the leaders had focused on advancing diplomacy, strengthening air defenses and Ukraine’s path to European Union membership. He said Kyiv had met the conditions to open its accession negotiations and urged the bloc to approve them this summer.

European Commission President Ursula von der Leyen said in Brussels that Ukraine is “making extraordinary progress” on reforms to allow it to join the EU and that “it’s high time for us also now to deliver.”

Prospective members must complete negotiations in 35 policy areas, or chapters, ranging from agriculture to trade in a process that can take years.

Zelenskyy also said Ukraine and Latvian Prime Minister Andris Kulbergs signed a drone deal to deepen joint defense and co-production.

Russia’s deadly strikes on Ukraine

Russia, meanwhile, kept up its strikes across Ukraine. In the northeastern Kharkiv region, three people were killed and 25 others, including three children, were wounded in attacks in the past 24 hours, said Oleh Syniehubov, head of the regional administration.

In the Dnipropetrovsk region, three people were wounded when several districts came under attack overnight, said regional administration head Oleksandr Hanzha.

Russia launched 166 long-range strike drones and two guided missiles at Ukraine overnight, Ukraine’s air force said, with air defenses shooting down 146 of the drones.

Russia’s Defense Ministry said its defenses downed 140 drones overnight. A woman was killed when a Ukrainian drone hit an apartment building in the Belgorod region neighboring Ukraine, regional emergency officials said.In Brussels, European Commission President Ursula von der Leyen said Ukraine is “making extraordinary progress” on reforms to allow it to join the EU and that “it’s high time for us also now to deliver.”

Seeking more sanctions on Russia

Zelenskyy said he had pressed for tougher sanctions on Russia, including its shadow fleet. He also held talks with Finnish President Alexander Stubb and Norwegian Prime Minister Jonas Gahr Støre on bolstering Ukraine’s air defenses.

“All of our partners now note that Ukraine’s positions on the front are significantly stronger, and so our diplomacy, which we are working to step up, must proceed from that,” Zelenskyy said. “Unfortunately, Russia is trying to make up for its enormous battlefield losses with strikes on our cities and communities, and on civilian infrastructure.”

In Brussels, Von der Leyen announced proposals for new sanctions against Russia targeting its energy, financial and trade sectors, including fisheries for the first time with a ban on cod, among other measures.

She also proposed banning EU entry for “anyone who has served in the Russian armed forces since the beginning of the war” to ensure that Europe stays off-limits “for anyone who has participated in the invasion of Ukraine.”

The sanctions must be endorsed by the 27 EU member countries before they can come into force.

On Monday, Zelenskyy said he had held positive talks with U.S. representatives Steve Witkoff and Jared Kushner during a stopover at an airport in Moldova’s capital, describing them as focused on ending the war. In a social media post, he said the two sides discussed diplomatic prospects ahead of this month’s Group of Seven summit, and that he had briefed the U.S. side on Ukraine’s assessment of Russia’s intentions.