Rescuers work on the scene after a collision of two passenger trains in Narsingdi, 51 km northeast of Bangladesh's capital Dhaka on Dec. 8, 2010. At least 21 people were killed in the collision in Narsingdi at about 5:00 PM local time Wednesday. [Xinhua]

A soldier stands near the scene after a collision of two passenger trains in Narsingdi, 51 km northeast of Bangladesh's capital Dhaka on Dec. 8, 2010. At least 21 people were killed in the collision in Narsingdi at about 5:00 PM local time Wednesday. [Xinhua]