Pentagon investigates video that claims to show Isis with US weapons

The Pentagon says it is working to determine the authenticity of footage that purports to show US weapons in the hands of Islamic State (Isis) militants in the Syrian town of Kobani. The video shows a masked man in combat fatigues opening boxes of grenades and what appears to be rocket propelled grenades. A parachute is shown attached to the weapons cache. It is believed to be a US weapons drop to Kurdish forces