A team made up of Calgary Police officers and RCMP have now laid charges against a man who was arrested at the scene of a house explosion on Wednesday.

Crews responded to a call of an explosion in the northwest community of Royal Oak at just before 8 p.m.

When they arrived on scene at a home in the 200 block of Royal Oak Heights N.W. , they found that a garage door had been blown out.

First responders to the scene found four devices, originally believed to be pipe bombs, in the garage, and immediately evacuated the area as a precaution.

The items turned out to be homemade hash oil filters and the explosion was the result of a man's alleged attempt to produce cannabis resin.

A search by police also found a small marijuana grow operation in the home.

Richard Edward Hyde, 33, has been charged with two counts of production of a controlled subtance, and one count each of possession of marijuana, rendering a property dangerous, and arson.

“We are fortunate this incident did not result in more widespread damage or serious injuries,” said CFSEU-Calgary Sgt. Len Dalton in a release. “The potential for harm when people engage in this kind of activity is significant, and we encourage residents to be on the lookout for and report suspicious activity to police.”

To report suspicious activity or a suspected marihuana grow operation in your community, contact police or Crime Stoppers at 1-800-222-8477 (TIPS).