Philippine officials say a strong earthquake has rocked the central Philippines, killing at least 7 people, with others missing.

The U.S. Geological Survey says the 6.8-magnitude quake struck late Monday morning, north of the city of Dumaguete on Negros Island at a depth of 46 kilometers.

The Associated Press reports the earthquake and the multiple aftershocks “destroyed buildings and triggered landslides” that buried dozens of houses, trapping residents.

The Pacific Tsunami Warning Center has not issued a tsunami warning, but the local Philippine Institute of Volcanology and Seismology has issued an alert.