A Turkish Airlines plane made an emergency landing in Morocco on Monday after a bomb threat, Turkish television reported.

The Boeing 777-300ER plane bound for Sao Paulo from Istanbul landed safely at Casablanca airport after a note was found warning that there was a "bomb" in one of the aircraft toilets, the NTV and CNN-Turk channels reported.

The passengers were being evacuated and a search underway to find any explosives, they added.