Forces loyal to Libya’s Government of National Accord said Monday they had seized a new sector near the ISIL Takfiri group’s command center in Sirte.

Forces loyal to Libya's Government of National Accord said Monday they had seized a new sector near the ISIL Takfiri group's command center in Sirte.

The pro-GNA forces have been engaged in a military operation since May 12 to retake the coastal city located 450 kilometers (280 miles) east of Tripoli.

Sirte has been a stronghold of the Takfiri group since June last year.

On Monday, the loyalists said they had seized an area of guest houses close to the Ouagadougou conference center, the complex from the era of slain dictator Moamer Kadhafi where the terrorists have their headquarters.

Pro-GNA forces entered Sirte in June, but their progress slowed as the Takfiris hit back with sniper fire, suicide attacks and car bombings.

Since Thursday pro-government forces have been battling to reach the conference center.

"Our forces have targeted Daesh snipers and their mines," the statement said, using an Arabic acronym for ISIL.

The guest houses are east of the Al-Dollar district, which the pro-GNA forces took last week and where VIP guests attending events at the Ouagadougou complex used to be accommodated.

On Sunday, the loyalist forces said they would soon begin a final assault to retake Sirte from ISIL.