Banda Aceh: A powerful earthquake struck off Aceh province on Indonesia`s Sumatra island on Wednesday, killing at least 25 people.
Dozens were feared trapped in the rubble.
Pidie Jaya district chief Aiyub Abbas said hundreds of people in the district have been injured and more than 40 buildings including mosques, stores and homes were flattened. The district is located 18 kilometers (11 miles) southwest of the epicenter.
The shallow 6.5-magnitude quake hit just north of the small town of Reuleuet, the US Geological Survey (USGS) said. There was no tsunami alert.
The quake struck at dawn, as some in the predominantly Muslim region prepared for morning prayers, local officials said.
The head of the local disaster agency, Puteh Manaf, said the sole hospital in the district had been overwhelmed by the number of injured.
"The data we have now is that 25 people have been killed and hundreds are estimated to have suffered injuries," he told AFP.
Local district secretary Iskandar Ali also confirmed the figure, citing preliminary data that showed at least 25 had died in the quake.
Mosques, homes, and shops were flattened in the quake, with images from the worst-hit areas showing significant damage.
Local resident Hasbi Jaya, 37, said his family was asleep when the powerful quake struck.
"We immediately ran outside the house but it crumbled. Everything from the roof to the floor collapsed, and was destroyed," he told AFP.
"I looked around and all my neighbours` houses were also completely destroyed."
The local disaster management agency said rescue efforts were under way to save those trapped beneath collapsed buildings.
"Some people are still trapped inside shophouses, and we are trying to evacuate them using heavy machines and by hand," local agency head Puteh Manaf told AFP.
Patients were also being sent to a neighbouring district with greater facilities, said deputy district chief Said Mulyadi.
He said at least seven children were among the dead, and many more had suffered broken bones and other injuries.
"There are many shophouses have caved in, and many (people) are alive but trapped," he told AFP.
Seismologists said the earthquake was felt across much of Aceh province, which was devastated by the 2004 Indian Ocean tsunami.
At least five aftershocks followed the quake, said Eridawati, local head of the Meteorology, Climatology and Geophysics Agency.
The USGS upgraded the magnitude to 6.5 from an initial reading of 6.4 and issued a yellow alert for expected fatalities and damage.
"Some casualties and damage are possible and the impact should be relatively localised," it said.
In the coastal town of Sigli, people panicked and fled their houses to seek shelter away from the sea.
"We are now evacuating to Tijue because we are afraid of a tsunami," said Nilawati, one of those heading several kilometres inland.
Indonesia experiences frequent seismic and volcanic activity due to its position on the Pacific "Ring of Fire", where tectonic plates collide.
Aceh lies on the northern tip of Sumatra island, which is particularly prone to quakes.
In June, a 6.5-magnitude quake struck off the west of Sumatra, damaging scores of buildings and injuring eight people.
A huge undersea earthquake in the Indian Ocean in 2004 triggered a tsunami that engulfed parts of Aceh.
The tsunami killed more than 170,000 people in Indonesia and tens of thousands more in other countries around the Indian Ocean.
(With Agency inputs)