ROUGH CUT (NO REPORTER NARRATION)<br/> <br />American-led forces have conducted 21 airstrikes near Kobani, Syria over the last two days in an attempt to slow the advance of Islamic State militants.<br/> <br />One strike hit a modular oil refinery near Deir al-Zor, U.S. Central Command said. Other strikes destroyed two militant staging areas, destroyed or damaged three Islamic State buildings and damaged three other compounds, it said.<br/> <br />The military said there are indications the airstrikes have slowed Islamic State advances in Kobani, but cautioned the situation on the ground remains fluid as militants try to gain territory.