Libyan forces conducted raids on Wednesday in the western city of Sabratha, killing seven suspected Daesh fighters in a militant hideout, Reuters reported.
Local security forces have been battling the militants since Daesh briefly overran Sabratha last week, beheading at least 10 brigade members.
A spokesman for the city's military council, Sabri Kshada, told Reuters the raid took place about 12 miles south of Sabratha.
"Our forces were confronted by the militants and there was an exchange of fire," Kshada said.
Three suspects escaped during the raid, and a Syrian fighter and a female Tunisian militant with a three-year-old son were detained, he said.
It came after a US airstrike on the outskirts of the city on Feb. 19, which killed more than 40 people.
Daesh and similar militant groups have taken advantage of the political chaos in Libya, establishing dominance in several cities throughout the country.
Meanwhile, military forces loyal to the internationally-recognized eastern government have made major gains against Daesh and other groups in Benghazi, where they have long been battling militant groups in the city's streets.