London's defence ministry reportedly said it had footage of Gaza on the day of the incident, but refused to disclose it, citing national security. <br /><br />James Kirby was among seven workers killed in the attack, which Israel called a' mistake'. <br /><br />In another shocking incident earlier this year, 15 aid workers were found dead in a mass grave in Gaza - the IDF said it had fired upon them because of their suspicious movements.<br /><br />
