Several people were injured Thursday morning when there was an explosion at a manhole site in Calgary's Beltline, where they were working.

Emergency crews were called to Macleod Trail near 14th Avenue S.E. at about 7:50 a.m., said fire department spokesperson Alex Kwan.

Two workers were underground and three others up top when the blast occurred, followed by a flash of flames, he said.

“All workers were able to self-evacuate from the area and underground vault,” Kwan said.

Macleod Trail was closed between 14th Avenue S.E. and 17th Avenue S.E. for several hours. It has now reopened. (Ted Henley/CBC)

When crews arrived there was no sign of an active fire.

Emergency services assessed the workers at the scene and all were in stable, non-life-threatening condition. Three people were tak

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