New footage has emerged of the Israeli assault on a convoy of aid ships headed to Gaza in which nine activists were killed.

The high-quality film was reportedly recorded by New York-based documentary maker Iara Lee aboard the Mavi Marmara, the Turkish ship that bore the brunt of the Israeli attacks.

Israel attempted to confiscate all footage recorded by participants in the Gaza Freedom flotilla – including taking away mobile phones – but Lee managed to smuggle one hour of video out of the country by hiding it in her underwear, it was reported.