Thailand deaths: Police focus on immigrant workers
Police investigating the deaths of two Britons in Thailand say they are looking for a number of suspects - but have ruled out other British tourists.
David Miller, 24, and Hannah Witheridge, 23, were found dead on a beach in Koh Tao on Monday, having suffered serious injuries.
Police said they were now focussing their investigation on the Burmese migrant worker community on the island.
Jonathan Head reports from Koh Tao.