The office of Libya's interim prime minister in the capital, Tripoli, has been attacked by gunmen believed to be ex-rebels demanding payment.
Mohamed Alsabee, from the PM's media office, has told the BBC there was gunfire inside the building.
A dozen pick-up trucks mounted with anti-aircraft guns are surrounding the building, says the BBC's Rana Jawad.
It is unclear whether the prime minister, Abdurrahim al-Keib, was there, our correspondent says.
The situation is still unfolding, our correspondent says.
A security guard inside the building is injured, our correspondent adds.
Most people inside the building have fled, including the finance minister and the deputy prime minister.
The roads leading to the building are blocked.