IRNA � The Iranian Permanent Mission to the United Nations will protest to the UN Security Council and UN Secretary-General Antonio Guterres over US military jets threatening Iranian passenger plane in the Syrian air.

Mahan Air passenger plane was on route to Beirut, Lebanon on Thursday night when it was threatened by two US military jets.

The pilot of the Iranian plane says when he contacted the pilots of the fighter jets to ask them to keep distance, they had said that they were American.

Although the Iranian plane finally landed in Beirut Airport, some of its passengers were immediately taken to hospital.

The Syrian official SANA news agency also said that the fighter jets were American and had took off from an air base in Syria.

Iranian Foreign Ministry spokesman Abbas Mousavi has said that investigations are underway about the incident.

Mousavi said that after completing information about the incident, Iran will take the necessary political and legal measures in this regard.

He also said that Iran�s Permanent ambassador to the United Nations Majid Takht-e Ravanchi has talked with the UN Secretary-General Antonio Guterres, stressing that in case any incident may occur to the Iranian passenger plane on its way back home, the United States of America would be held responsible.