Egypt has sent a submarine to help search for the wreckage of the EgyptAir plane that crashed into the Mediterranean on Thursday, with 66 people on board.

The jet's black boxes are yet to be found - which could shed light on the cause of the tragedy.

However, audio from the flight indicates that everything was normal as the plane checked in with air traffic controllers in Switzerland.

The transmission was made about two and a half hours before it lost contact over Greek airspace.

Debris has since been found in the Mediterranean Sea, and data shows smoke was detected on board shortly before it disappeared.

On the recording from LiveATC.net we hear the plane check in with air traffic controllers in Switzerland late on Wednesday, before being handed over to those in Italy:

Earlier today, the first funeral was held for one of the victims.