Queensland backpackers stabbing: Federal police investigate possible extremist link in fatal attack.

Australian Federal Police officers are investigating possible extremist links to a fatal stabbing at a north Queensland backpackers’ hostel.

It is alleged the suspect, a 29-year-old French citizen, used the Arabic phrase “Allahu akbar” when arrested by police, Queensland Police Service Deputy Commissioner Steve Gollschewski said.

“While this information will be factored into the investigation we are not ruling out any motivations at this stage, whether they be political or criminal,” he said.

A 21-year-old woman was killed in the attack and a 30-year-old man injured. Both were British citizens.

A dog was also fatally injured.

Deputy Commissioner Gollschewski said the accused had been in the country about a year on a temporary visa.

“This person appears to have acted alone,” he said.

“He is a visitor to Australia and has no known local connections, however investigations are ongoing.”

Charges are yet to be laid.

More to come.

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This post originally appeared on ABC News.