Unidentified war planes have attacked positions of an armed faction in the Libyan capital Tripoli.
Residents heard loud explosions early in the morning near the main airport.
Two groups have been fighting for control of the capital for more than a month.
Local channel al-Nabaa said the planes had attacked four positions of the Operation Dawn, an umbrella of Islamist-leaning forces from Misrata.
Operation Dawn has been trying to expel brigades from Zintan, also located in western Libya.
Last Monday, the government said unknown fighter jets had bombed positions from armed factions in Tripoli, an attack claimed by a renegade general in Benghazi.
Meanwhile, Islamist militants have claimed that they have taken control of Tripoli airport.