POLICE are investigating the second bomb hoax in Redland city in two weeks after a threatening phone call was made to Thornlands State School on Thursday.
More than 700 students were evacuated to the next door school Thornlands Special School after the automated call which was made at 10.54am.
Police scoured the school buildings and grounds for three hours before giving the all-clear.
Police from the Wynnum District Child Protection Investigation Unit will takeup the case.
Two other Queensland schools, Centenary State High School and Tewantin State School, also received threatening automated phone calls at 10.54am.
Cleveland State School received a bomb hoax on February 3, the same week more than 11 schools across the country received automatred calls between 10.45am and 11am.
District Duty Office Senior Sergeant Lukia Serafim said police believed the hoax calls were linked as they were similar in content and context of the message.
Woolworths at Cleveland came to the rescue with pallets of fresh cool fruit and cold water.
Nobody was injured during the evacuation.
