Man enters CBC Calgary building with a gun

Radio programming in Alberta was disrupted when a man armed with a handgun entered the CBC building in Calgary. Police said the man entered the foyer of the building shortly before 2 a.m. on Sunday but a locked door that requires a swipe card prevented him from getting further inside. A security guard inside the building noticed the man and alerted police. Police surrounded the building and shut down traffic. The man surrendered around 7 a.m. The station ran its mnorning programming out of Saskatchewan. Police say it's not clear yet what the man wanted.