Recording reveals coastguard told captain to 'get back on board'

A recording of a conversation between the coastguard and the captain of the Costa Concordia has been released.

In it the coastguard is heard telling the captain to "get on board now".

The ship's owners have blamed the captain for Friday's crash, saying he changed course.

Capt Francesco Schettino has been detained on suspicion of manslaughter, but denies any wrongdoing.

Newly-released thermal images show people waiting to be rescued.