Calgary emergency crews on scene after explosion in Marlborough

Calgary emergency crews are on the scene in the community of Marlborough after an explosion and fire at a home. Crews were called to the 700 block Maryvale Way N.E. at around 8:47 a.m. on Monday. after area residents reported heading a loud bang. It's unknown what caused the explosion or how many people have been injured.  If you have photos or videos, please send them to CTV News via email at CalgaryDesk@Bellmedia.ca.  Enmax is reporting an unplanned power outage in the communities of