UPDATE: Justin Bourque was arrested early Friday by Moncton police. Read updates here.

A manhunt is continuing Thursday in Moncton after three Mounties were killed and two others wounded by a shooter Wednesday evening.

Police with armoured vehicles surrounded a building in Moncton for several hours on Thursday afternoon, but Cpl. Chantal Farrah later confirmed at a press conference that the shooter, identified by police as 24-year-old Justin Bourque, was not apprehended. She also said that one of the wounded officers remains in hospital while the other has been released.

Global Halifax reporter Natasha Pace tweeted that police repeatedly used a speaker to broadcast a message outside the building asking people inside to leave. She also reported that seven people did exit and were questioned by police.

Earlier in the day, police said Bourque was spotted on Thursday morning but that they were unable to apprehend him. He is considered armed and dangerous.

Commanding Officer Roger Brown said the most recent sighting of the suspect was just after daylight and that police were able to positively identify him. Police were unable to confirm the shooter's identity on two other occasions when he may have been spotted.

“Honestly, I don’t know where he is at this time,” commanding officer Roger Brown said at a press conference Thursday. “I ask for your trust and indulgence. This is working through your worst nightmare.”

Brown said police officers from across the country have been brought in to help arrest the suspect.

Police have yet to elease the names of the officers who were shot because police were still notifying relatives.

Bourque, wearing army camouflage, was reportedly spotted carrying multiple weapons including high-powered rifles, a crossbow, and knife.

“We know very little about this man. We know he has high-powered firearms,” said Marlene Snowman, head of the Codaic Regional RCMP.

"He had no police record."