The shooting happened on Brookside Drive just after 7am local time (8pm AEST)
The reason of the shooting in the capital of New Brunswick province was not immediately known.
Police have confirmed that two of those fatally wounded were local police officers.
Of the four people killed in this morning's shootings on Brookside Drive, two were Fredericton Police officers. No names are being released at this time. Please appreciate this is a difficult time for their families and our colleagues. We will provide more info when we can.