The bodies of 21 more passengers from the Atlantic Ocean crash site of doomed Air France flight 447 have been transported to the Brazilian port city of Recife. The investigation into the cause of the crash continues.

In this photo released by Brazil's Navy, Brazilian tanker 'Almirante Gastao Motta', right, and French Navy ship 'Mistral' are seen during search operations for victims of the Air France flight 447 in the Atlantic ocean, Saturday, June 13, 2009.[CCTV/AP Photo/Brazil's Navy]

The total number of bodies recovered from the main area of the ocean where Brazilian and French search operations were being conducted has reached 50.

Brazilian air force planes and navy ships have been scouring a swathe of the Atlantic about one thousand kilometers northeast of Brazil since the Airbus plane disappeared.

Jose Silvestre, Recife Police Commissioner, said, "We are not working with any French experts. What we are doing is transporting the bodies and the materials that we found with them, from the air base to here."

Air accident investigators have said the Airbus registered inconsistent speed readings just before contact was lost, raising speculation the pilots might inadvertently have flown at the wrong speed and sparked the disaster.

Air France subsequently reported that the loss of air speed data on previous flights had been due to ice collecting in the sensors.

Theories about this crash have focused on the possibility that airspeed sensors malfunctioned, leading the pilots to set the wrong speed as the plane passed through storms.

Investigators also said the doomed Air France plane sent 24 automated messages within a 4-minute span indicating a series of system failures before it vanished.

Among this stream of data was one message showing inconsistent speed readings from the plane's sensors.

(CCTV June 15, 2009)