Libyan officials have arrested about 50 people after the US ambassador to Libya and three other consulate staffs were killed in the eastern city of Benghazi in an attack over a US-made anti-Islam film.

"The number reached about 50... Some of those who joined in the attack were foreigners, who had entered Libya from different directions, some of them definitely from Mali and Algeria,” president of the Libyan National Congress, Mohammed al-Megaryef said in an interview with CBS News on Sunday.

“It was planned; definitely, it was planned by foreigners, by people who entered the country a few months ago. And they were planning this criminal act since their arrival," he added.

US ambassador to Libya, Chris Stevens, and three other Americans were killed on Tuesday when rocket-propelled grenades were fired on the US consulate in the eastern Libyan city.


The incident took place while a group of people held a demonstration against an anti-Islam movie produced in the United States.

Meanwhile, demonstrations over the movie have been held across the Muslim world, with the protesters in some countries marching on the US embassies and torching the US flags.

Demonstrators in Iran, Sudan, Egypt, Yemen, Tunisia, and many other Muslim countries poured into the streets after Friday prayers to value their faith and condemn the movie that insulted Prophet Muhammad (PBUH).

The Wall Street Journal reported on Tuesday that the blasphemous movie has been produced by anti-Islam Israeli-American Sam Bacile.

Washington has been evacuating most of its diplomatic staff from Libya to Germany following the attack.

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Press TV