The anti-ISIS coalition of forces in Libya, Al-Bunyan Al-Marsous, which uprooted ISIS militants from Sirte, are threatened by airstrikes carried out by Khalifa Haftar's forces, The Washington Post reported.

The report says since Haftar launched his offensive on the capital of Tripoli in April, the militants have staged nine attacks, mostly in the south, according to US military officials.

Those attacks triggered four US drone strikes in September, targeting Islamic State positions in the southern desert, including two attacks on the oasis town of Murzuq, about 600 miles south of Tripoli.

"We used to have eyes in the south. Now we can’t go out there. The planes of Haftar's forces will bomb us.” The commander of Sirte Protection Force Al-Naas Abdullah told The Washington Post.

"Eight suspected ISIS members were captured in Sirte city in recent weeks," Libyan commanders told The Washington Post, adding that they were found in militant sleeper cells, they say, lurk in some neighborhoods.

Meanwhile, the Libyan Interior Ministry said over and over again that Haftar's forces offensive on Tripoli revived terrorist activities and gave a safe haven for ISIS remnants in Libya.