Forces loyal to Libya's UN-backed unity government pushed Sunday into the last areas of Sirte held by the Islamic State group in what was the jihadists' coastal stronghold, a spokesman said.
A US-backed force fighting to drive Islamic State out of Manbij said on Thursday it was giving the jihadist group 48 hours to pull out of the surrounded northern Syrian city.
The Islamic State group battled Iraqi forces and held civilians hostage Wednesday to defend its bastion of Fallujah, where three weeks of fighting has forced tens of thousands from their homes.
Young Arab people see the rise of the Islamic State group as "the single biggest challenge" in the region, a survey published Tuesday said, with respondents prioritising stability over democracy.
Syrian troops on Sunday seized the key Islamic State group bastion of Al-Qaryatain, dealing the jihadists a new blow in the country's centre a week after expelling them from Palmyra, state television said.
US Vice President Joe Biden said on Saturday that the United States and Turkey were prepared for a military solution against Islamic State in Syria if a political settlement was not possible, amid uncertainty over scheduled peace talks.