was launched at first light friday using helicopters, small boats and a naval vessel, a dangerous mission carried out by eight military officers working in soaring temperatures wearing sealed, protective clothing and breathing masks to protect them from the toxic gases still flowing from the volcano. the team spend four hours on the island. they're still searching for two more bodies, one believed to be in the water. the prime minister today thanking the team for their heroism. >> this carried out their role with dignity and respect for those who have been lost. there was, of course, still a huge amount of courage still required to do what they did today. >> the retrieval operation comes five days after the volcano erupted on the island causing plumes of steam, ash and rocks to pour out on to the crater. where dozens were enjoying a day trip. at least 16 people are dead or presumed dead and dozens more are being treated for life changing burns.