 At just before 1300 hrs local time the soldiers were on a tactical patrol escorting two light guns and the ammunition for these guns, in support of the forthcoming attack on Musa Qala, to the north of Sangin, Helmand Province, when the vehicle they were travelling in was caught in an explosion.Two other soldiers were also injured as a result of the blast, one had his back broken.At the inquest of Trooper Sadler it was ascertained that the two guns could have been flown in by helicopter.