Police in Australia have questioned five foreign doctors and seized computers in raids connected with last week's car bomb attacks in Britain, authorities said on Friday.
The raids came after an Indian doctor was arrested on Monday in eastern Queensland state and after at least five other doctors were detained in Britain in connection with the failed car bomb attacks in London and Glasgow.
"They are migrant doctors, of similar nationality and background to the other doctors that are being questioned," said Australian Federal Police commissioner Mick Keelty, stressing that none of the men questioned in Western Australia had been arrested.
"This is not an investigation into medical practitioners per se, it is an investigation in support of the London Metropolitan Police," he said adding that there was no heightened threat to Australia.
"Everything is under control, we don't have any increased threat here," he told reporters.
Officers have seized evidence such as computers from a number of locations, including hospitals, he said.
"We are largely working on high- tech material, computer files, which take a long time to work through, particularly if they are in a foreign language," Keelty said.
The commissioner revealed that the Australian investigation into the British bomb plot had stretched into a third state, New South Wales, where one of the doctors is being questioned by police.
But Keelty and other officials were anxious to stress that such police interviews did not mean that any of the doctors were suspects in the case.