Local Libyan official says AFRICOM is likely behind airstrikes which targeted various points close to the city centre.
Four air strikes have targeted the southern Libyan city of Ubari, according to a local official.
The attacks targeted various points close to the city centre, said the official, who spoke on condition of anonymity because he was not authorised to speak to the media.
According to the source, the first strike occurred at 4 am local time (02:00 GMT) and the latest at 7 am (05:00 GMT).
There has been no official comment from the Libyan authorities regarding the air strikes.
The local official, however, said that the United States Africa Command (AFRICOM) is likely to be behind the strikes since it had carried out similar attacks in the city in the past.
On March 24, 2018, the Pentagon announced the killing of two militants in an air strike near Ubari carried out by AFRICOM.
On July 25, 2018, AFRICOM claimed responsibility for killing 11 Al-Qaeda militants in a drone strike, which it said targeted a moving target in the town of Al-Uweinat near Ubari.
Ubari, which is located 964 km south of Tripoli, is the second-largest city in southern Libya after Sabha, with the Tuareg making the vast majority of its population.
It hosts the Sharara oilfield, the largest in the country, and is under the control of warlord Khalifa Haftar.