TOBRUK - Libyas Prime Minister Abdullah al-Thani escaped unharmed when would-be assassins opened fire on his car on Tuesday, the spokesman for his internationally recognised government said.

"The prime ministers car was hit by bullets when armed men opened fire as it was leaving an area where a session of parliament was held" in the eastern city of Tobruk, said Hatem el-Ouraybi.

"The prime minister was not hurt, but one of his bodyguards was wounded," he said on the phone.

"It was an assassination attempt, and the prime minister survived it," he added, without being able to identify the assailants.

Wracked by bloody turmoil after a 2011 uprising toppled and killed dictator Moamer Gathafi, Libya has had two governments and parliaments since an Islamist-backed militia alliance seized Tripoli last August.

Tuesdays shooting came after a meeting of the internationally recognised parliament at its headquarters in Tobruk.

Lawmaker Faraj Abu Hashem said the gunmen had attempted to storm the building but were driven back.

"The parliament was questioning the government work in a session today, when we heard gunshots outside," he said over the phone.

"Members of the government and the prime minister left immediately as gunmen tried to storm the parliament... but forces prevented them from entering."

Libya has seen near daily attacks on security forces, particularly in and around the eastern city of Benghazi, cradle of the anti-Gathafi revolt.

In January last year, Libyas then interior minister said he escaped unharmed from an assassination attempt in Tripoli, three weeks after deputy industry minister Hassan al-Droui was shot dead in Gathafis home town of Sirte.