Saskatoon police say the call about an explosion at the court house came in after 11 p.m. on Wednesday night.
According to police, some minor damage to the exterior of the building has been reported and there are no injuries.
Members of the police, including the SPS Explosive Disposal Unit and a bomb detection trained SPS K9 team and of the fire department were at the scene after midnight.
Saskatoon resident Scott Dempster says he witnessed the explosion after stopping with a friend to examine what they originally thought was a fire outside the courthouse while driving up 19th Street around 10:55 p.m.
He said they pulled over and were getting off the phone with 911 when: “All of a sudden, it was like a ‘bang.’ ”
Dempster said while the noise wasn’t “a really huge bang” he and his friend had questions about what had happened, noting they were shaken up after police had released information they were investigating the blast as a suspected “improvised explosive device.”
“I wasn’t very freaked out at the time, but now looking back … I kind of wish I hadn’t been that close to something going off,” he said in a phone interview.
“Afterwards now, we’re a little freaked out.”
No arrests have been made, and police are asking anyone with information to contact them or Crime Stoppers.