Jakarta  - At least 467 people have been killed and 423 injured following the powerful quake that struck Indonesia's West Sumatra province, the Social Affairs Ministry said Thursday.

The deaths occurred in five districts of West Sumatra hit hardest by Wednesday's magnitude-7.6 quake, said Tugio Basri, an official at the ministry's coordination post. The provincial capital Padang suffered the worst casualties, he added.

The National Disaster Management Agency said thousands of people were still trapped under collapsed buildings.

Earlier, Health Minister Siti Fadilah Supari said the death toll could exceed 1,000. (dpa)