Residents of a Surrey townhome were forced to flee over the weekend following an explosion that's believed to have been caused by a leaking propane bottle.

The RCMP said three people were inside the 105 Avenue property when the explosion erupted at around noon Saturday. Fortunately, everyone managed to get outside unharmed.

But days later, residents still haven't been allowed back inside over concerns about the townhome's structural integrity.

"At this time the structure is still compromised due to the effects of the explosion," Asst. Chief Jason Cairney said Monday. "We're having to work with the insurance adjuster to develop a plan to have an engineer come out and assess the structure and then provide some options to stabilize it."

The fire investigator hasn't been able to enter the property either, so the cause of the explosion hasn't been confirmed.

Surrey RCMP is investigating, and anyone who witnessed the explosion is asked to call the detachment at 604-599-0502 or Crime Stoppers at 1-800-222-8477.