Greek island search for three missing tourists intensifies amid string of deaths

Six holidaymakers reported dead or missing in nine days as Mediterranean experiences abnormally hot' weather

Search operations to find three missing tourists on two Greek islands have intensified after police announced that two holidaymakers had been found dead on other islands over the weekend.

Rescue teams supported by sniffer dogs, helicopters and drones have been scouring the Cycladic islands of Sikinos and Amorgos for two French women and an American man who went missing last week.