One of the two flight-data recorders of the crashed China Eastern plane have been retrieved from a lake in the north China city of Baotou.

The other black box of the plane that crashed on Sunday, has been located but has not been retrieved.

An expert team is in the city to conduct data analysis, trying to find the cause of the crash.

Investigators have ruled out man-made factors, but for security reasons all flights of the same type of plane have been grounded.

The plane crashed into a park lake soon after it took off on Sunday morning, killing all 53 on board, and one person on the ground. Enditem