The police asked people to lock their doors and avoid the area, confirming there had been 'multiple fatalities'. The circumstances of the events leading up to the shooting are unclear at this point.
Police say there is no further threat to public safety, however the crime scene is still contained as officers continue their investigation.
DiDiotato added, "With the tempo, it might have been a gunshot".
New Brunswick had only three homicide shootings in 2016, according to Statistics Canada.
He said that about five minutes later he could hear similar sounds near his home.
"My heart goes out to everyone affected by this morning's shooting".
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Three RCMP officers were killed and two more were wounded in 2014 in Moncton, New Brunswick, about 195 km (121 miles) from Fredericton, in one of the worst incidents of its kind in Canada. "We're following the situation closely".
Shots were heard shortly after 7 a.m.
She said she heard a "crack, crack, crack, four in a row" in rapid succession.
"That's when they (police) were shot", Gaudet said.
Scott MacDonald was sitting at Tim Hortons in Fredericton, N.B., this morning having a coffee when he noticed the police cars and ambulances race by.
By Friday afternoon, a memorial of flowers and messages was growing in front of the Fredericton police station.
One image he reposted said: "If you think it's OK to kill or attack police officers, unfollow me now". "We've lost a brother", Secord said.
"On behalf of all New Brunswickers, I offer my condolences, thoughts and prayers to the victims and their families".