Four people were killed, including two policemen, during a shooting this morning on a quiet suburban road in Canada.
Police urged people in the area of the shooting to remain in their homes, describing it as an "active incident" on Twitter around an hour after giving first word of the killings.
New Brunswick Premier Brian Gallant said in a statement that "we are all shocked and saddened to learn this morning of the ongoing tragic incident".
Fredericton is the capital of New Brunswick province and home to around 56,000 people.
A local TV reporter said he had heard four gunshots just after 07:00 (11:00 GMT). That CBC report adds that there has been massive emergency services response to the area, including police, paramedics and firefighters.
The shootings took place on Brookside Drive, a leafy thoroughfare on the city's north side.
Police have not released the names of the two Fredericton officers and two other victims who were killed.
After he had spotted a man in the back parking lot and called 9-1-1, MacCoubrey heard more gunfire and looked out a window again and saw two police officers on the ground.
Police were also asking people on Facebook not to use social media to report on police locations.
"The police officer told me to stay away from the windows and to lock the doors".
"This sort of thing never happens here", Hill said.
"Awful news coming out of Fredericton", Prime Minister Justin Trudeau said in a Twitter message.
Multiple fatalities have been reported after an early morning shooting in Fredericton, New Brunswick.
Terrible news coming out of Fredericton. "We're following the situation closely".
However in recent years, Canada has seen a dramatic uptick in high-profile shootings.
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