October 22, 2014 8:39 AM EDT

The United States military has made a series of failures in its airstrikes and airdrops in its campaign against the Islamic State of Iraq and Greater Syria (ISIS), according to a report on a respected defence website.

According to Jane’s, a publisher of military-related information, arms destined for Kurdish fighters defending the Syrian town of Kobani, which abuts the Turkish border, fell into the hands of ISIS while a number of U.S. missiles aimed at ISIS targets reportedly failed to detonate.

The report features images and video taken from ISIS media channels. One video appears to show boxes of ammunition and grenades in nets attached to a parachute. According to Jane’s, the images show a U.S. Joint Precision Airdrop System, which uses GPS to reach its correct destination. The Pentagon has said it is examining the video, reports the BBC.

Other ISIS videos featured in the Jane’s report appear to show U.S. missiles that failed to explode on impact.

[Jane’s]

[BBC]

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