At least 13 people have died and about 50 are injured after two passenger trains collided

At least 13 people have died and about 50 are injured after two passenger trains collided in India’s southern Andhra Pradesh state

A rescue operation was launched and hundreds of emergency workers were at the site to clear the wreckage.

Officials say that a preliminary investigation has found that a “human error” had led to the collision.

Hundreds of ambulances, doctors, nurses and rescue personnel were sent to the scene to rescue passengers and pull out bodies.