A Korean man in his 40s was killed by a shark in Guam, AP reported on Tuesday.
The man, who was identified as Kim Nae-dok, went missing on Saturday and staff of the Pacific Island Club, the resort hotel where he had been staying, searched the area.
His remains were eventually discovered by two fishermen about 6 m from Tumon Bay the following day. The body was missing both legs and the right arm.
A medical examiner said the autopsy "showed evidence of bleeding, an indication that his heart was still beating when the attack happened," according to AP.
"He also drowned, but before he drowned, he was attacked," the medical examiner added.
Sharks seldom attack people in Guam, but a few incidents have been reported. Professor of marine biology Terry Donaldson at the University of Guam Marine Laboratory said Kim was probably swimming over the edge of the reef, where larger sharks can be found.
In 2009, a fisherman was attacked by a shark and in 2006 a Japanese tourist had his arm bitten off by a shark.