TRIPOLI- A group of unarmed militiamen demanding better pay for guarding Libya's borders barged into the prime minister's headquarters on Monday, but the man they'd come to see was away, an official said.

Prime Minister Ali Zeidan was in Geneva to address the United Nations Human Rights Council when about 30 men forced their way into the government compound in central Tripoli, in the latest example of volatility plaguing the North African country.

"The group went upstairs and spoke to one official there but they wanted to see Zeidan who is not in the country today," a government official, who declined to be named, said, adding painting was damaged in the process.

He said the group staged a peaceful sit-in outside the main building but still within the compound.

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