Beirut, Jan 11 (IANS): Al Qaeda-linked Al Nusra Front killed nine people and injured 37 in a twin suicide blasts in Lebanon's port city of Tripoli.

The Al Nusra Front said Saturday on its Twitter account that the attacks against a coffee shop was carried out by the Nusairi National Democratic Party in Jabal Mohsen as a revenge to the Sunnis in Syria and Lebanon, Xinhua reported.

The National News Agency earlier reported that the suicide bombers were Lebanese nationals from the al-Mankoubin Sunni neighborhood in Tripoli.

It identified them as Taha Samir Kayyal and Bilal Mohammad Ibrahim and said an intelligence unit from the Lebanese Army surrounded their houses in the area.

The army has cordoned off the area and a curfew has been imposed on Jabal Mohsen in an attempt to avoid possible sectarian violence.

Lebanon Prime Minister Tamma Salam slammed the terrorist bombings. He said the attack "can never terrorise the Lebanese or weaken the country's determination and decision to confront terrorism and terrorists".