Updated: April 23, 2014 at 1:56 pm
A small explosion injured three people in the back of a marijuana grow house in southwest Denver Wednesday afternoon, fire authorities said.
The explosion happened in the 1200 block of South Lipan Street. The cause was not immediately known, but investigators are on location.
According to the fire department, the three people injured are suffering from burns, but the extent is not known and paramedics are on the scene.