Two flights operated by Pakistan's state-owned airline received bombs threats on Wednesday, and both landed safely, one in Turkey, the other in Malaysia.

The first flight was headed for Manchester, England, when it was notified of the threat near the Bulgarian capital of Sofia, and contacted the control tower in Istanbul to seek permission for the landing, state-run state-run Anatolia news agency reported.

PIA spokesman Mashood Tajwar confirmed the flight had received a threat and had landed. All passengers were safe.

Later, a second PIA flight from Islamabad to Kuala Lumpur also received a bomb threat.

It landed in Kuala Lumpur and all 176 passengers disembarked safely, said Tajwar.

Tajwar did not say how the threat was delivered, but a local television station said it was by email.