 The men who were killed were members of the Quick Reaction Force (QRF) which was working in support of the company operation.The members of the QRF were talking to locals when a 13-year-old boy pushed a wheelbarrow containing an explosive device toward them, which was then detonated killing the marines and killing and injuring a number of children and civilians.It is thought that the boy did not know about the explosives in the wheelbarrow and was an unsuspecting victim of the blast.