At least 15 Indian tourists have been killed after a speedboat capsized near Vietnam's Phu Quoc Island in the country's south. Vietnamese authorities confirmed the accident on Saturday, saying the vessel was carrying 32 Indian tourists and four crew members.Twenty-one people were rescued alive following the accident and were taken to local hospitals for treatment. The cause of the incident has not yet been determined.According to local media reports, the speedboat was returning to An Thoi Intern...