Wreckage found in south-east of Moscow (photo credit: AFP)

Reports say speed sensors that were iced over may have caused a passenger jet to crash near Moscow, Russia, killing all 71 people on board.

According to investigators, the instruments fed the pilots wrong speed data.

Recall that the jet crashed minutes after take-off from Moscow’s Domodedovo airport on Sunday.

Over 1,400 body parts and hundreds of plane fragments have been recovered from the crash site, the BBC reported.