Story highlights At least 100 killed, 136 seriously injured, official says

Residents flee to hills fearing another tsunami though no warning issued

(CNN) Rescuers are combing through the rubble for survivors after an earthquake Wednesday morning in Indonesia's Aceh province.

At least 100 people were killed, including young children, and 136 seriously injured, according to Indonesia's Disaster Management and Mitigation Agency.

The shallow 6.5-magnitude quake damaged homes, shops and mosques in the district of Pidie Jaya, completely destroying hundreds of structures.

Additional medical personnel have gone to the region after the Pidie Jaya hospital was damaged in the quake, which struck as residents were preparing for early morning prayers.

'We have to move so fast to save them'

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