Weapons dropped by US planes intended for Kurdish fighters in Syria have fallen intp the hands of the Islamic State, the terror group boasted Tuesday in a video translated by MEMRI.In the video, an Islamic State fighter can be seen inspecting a large package attached to a parachute. the fighter then opens several crates revealing grenades, bombs and RPG rockets."Indeed those who disbelieve spend their wealth to avert people from the path of Allah. So they will spend it, and it will be for them a (source of) regret. Then they will be overcome," the fighter says in the video."This is some of the American aid that was dropped for the PKK atheists.There is ammunition and military equipment here," he said as he opened the crates."Allah be praised this is booty for the majahideen," the fighter added.The Pentagon said on Tuesday the vast majority of military supplies air dropped near the Syrian city of Kobani had reached the Kurdish fighters they were intended to help, despite the video showing Islamic State militants with a bundle.Rear Admiral John Kirby, the Pentagon press secretary, said experts were analyzing the video and trying to determine if the bundle was the one the department reported earlier had fallen into the hands of Islamic State or if it was a second bundle in the group's possession.Pentagon officials said a US airdrop had delivered 28 bundles of military supplies to Syrian Kurdish fighters near Kobani on Sunday and reported that one had fallen into the hands of Islamic State militants. The Pentagon later said it had targeted the missing bundle in an air strike and destroyed it."We are very confident that the vast majority of the bundles did end up in the right hands," Kirby said. "In fact, we're only aware of one bundle that did not."Reuters contributed to this report.