Ethiopian Airlines has rejected a draft report by Lebanese authorities that blames pilot error for a deadly 2010 plane crash.

Airline officials said Tuesday the report is biased and incomplete, and that they believe the plane went down because of an explosion while it was in the air.

The Boeing 737 plunged into the Mediterranean Sea minutes after taking of from Beirut airport in January 2010, killing all 90 people on board.

Ethiopian Airlines officials have been critical of previous reports about the cause of the crash.