The missing Malaysia Airlines jetliner probe is now focused on anyone connected to Flight 370, including ground crew at the airport.
Malaysia's acting transport minister says a key focus is on the flight crew.
Authorities found a flight simulator at the home of the missing airliner's captain.
A police official said the simulator's programs seemed to be normal ones used to practice flying and landing in various conditions.
Meanwhile, postings on the captain's Facebook page indicate he was a politically active opponent of the Malaysia's ruling coalition.