Jakarta, Jan 28 (Agencies): In a head-on collision involving two passenger trains in Indonesia on Friday, at least five people were killed and many others hurt, a railway official said.

Rescue operations have been on to reach several people trapped inside the debris of trains hours after the crash.

The accident took place at around 2:30 in the morning on the outskirts of Banjar, a village in West Java province, 270 kilometres from the capital, Jakarta.

"We don't know why they were on the same track," said clueless Bambang Ervan, a spokesman for the Transportation Ministry. "We're still investigating."

He added a passenger train traveling eastward from the city of Bandung collided with a westbound train from Surabaya.

Railway spokesman Bambang Supriyanto said at least five people lost their lives and 21 others were admitted in hospital, some in serious condition.

Police and hospital officials were not answering to phone calls made by the reporters on Friday.

According to reports, train accidents occur frequently on Indonesia's aging railway network, especially at crossings.