Abbott convenes National Security Committee after hostage crisis

Australian Prime Minister Tony Abbott speaks at a joint news conference with his Malaysian counterpart Najib Razak during an official visit in Putrajaya September 6, 2014. REUTERS/Olivia Harris (MALAYSIA - Tags: POLITICS)

Australian Prime Minister Tony Abbott said he has convened the National Security Committee for emergency briefings after hostages were reportedly taken in a Sydney cafe earlier on Monday.

"This is obviously a deeply concerning incident but all Australians should be reassured that our law enforcement and security agencies are well trained and equipped and are responding in a thorough and professional manner," the Pime Minister's office said in a statement.

"Motive unclear"

Mr. Abbott said on Monday it was unclear if the siege at a Sydney cafe, where hostages are being held, was politically motivated.

"We don't yet know if this is politically motivated, although there are some indications that it might be," Mr. Abbott told reporters in Canberra.

"This is a very disturbing incident. I can understand the concerns and anxieties of the Australia people," Mr. Abbott said, without providing any information on the unfolding siege.