Ten tourists from Tamil Nadu, and two from Andhra Pradesh, have died in the Vietnam boat capsize mishap, an official said on Saturday.All efforts were being taken, in coordination with the Union Government authorities, to bring the bodies of tourists who died in the incident abroad, he added.Three others from Andhra Pradesh were hospitalised in Vietnam following a tourist boat capsize near Phu Quoc Island, sources in the Andhra Pradesh Government said.The tourist speedboat carrying 32 Indian tourists and four crew members capsized near Phu Quoc Island while returning to An Thoi Port, the sources further said.The accident claimed the lives of 15 Indian tourists, while 21 others were rescued. Of the survivors, 17 were passengers, and four were crew members.Two remained in critical condition, and all 36 persons on board have been accounted for.“Preliminary information indicates that two persons from Machilipatnam are among the deceased. We are coordinating with the Indian Embassy and the Vietnamese authorities, and further details will be shared after official confirmation,” Andhra Pradesh sources said.Three other people from the state were hospitalised following the boat capsize, the sources added.The An Thoi Border Guard Station, the Navy, Coast Guard Region 4 and local boats launched a large-scale rescue operation. Life rafts and jet skis were deployed, they said.The tour was organised by Vietnam-based Threeland Travel through local coordinating vendor Sai Vietnam, while the Indian tourist group was reportedly associated with Lava Mobile.The cause of the accident was under investigation, with rough sea conditions and possible mechanical failure suspected.