MONTREAL (Reuters) - Police on Friday evacuated a building housing French video game maker Ubisoft"s UBIP.PA Montreal offices after receiving a hostage call which turned out to be a hoax.The drama unfolded on Friday afternoon when police officers in combat gear, and armored vehicles and ambulances, surrounded the red brick building in the Mile End neighborhood north of downtown. “The perimeter was quickly secured and ... no threat has been detected and no injuries are reported,” the police said in a statement, adding that it will investigate the call which resulted in “important” force deployment.Officers were sent to the location after a 911 emergency call, the police said earlier. The center of the police operation was the building that houses Ubisoft’s Montreal offices, among other companies. Slideshow ( 3 images ) All Ubisoft Montreal staff are safe and have been evacuated, Ubisoft spokeswoman Heather Steele said. Aerial footage taken by the Quebec French-news chain LCN showed people gathered on the rooftop terrace of the building, along with heavy objects left at the door to block it.