Riveres, Quebec, July 02, 2010, SPA -- Quebec provincial police said that an explosion has torn through a Canadian Forces recruitment center after authorities received a bomb threat. No one was hurt, according to AP. Provincial police Sgt. Eloise Cossette says the explosion blew out the glass doors of the center at 3 a.m. Friday. She says the center in Trois-Rivieres was closed at the time. The town is between Montreal and Quebec City. She says Trois-Rivieres police received the bomb threat minutes before the blast. Cossette says no one has claimed responsibility and police do not yet know what caused the explosion. The building is near a bus station and a large hotel