An Iraqi commander says special forces have entered the center of Fallujah city, taking over a government complex after intense fighting with Islamic State group militants.

Commander Haidar al-Obeidi, of the special forces, tells The Associated Press Friday that the forces are now besieging the nearby central hospital.

He says troops entered the city center around 6 a.m. local time (0300GMT) after intense fighting with Islamic State militants and with air support from the US-led coalition and Iraqi air force. He said Iraqi forces are now clearing roadside bombs near the government complex, which includes the municipality offices that IS had torched, the police station and other government buildings.

He says special forces believe militants are hiding in areas nearby and the search for them continues.