Edmonton police are investigating reports of a BASE jumping incident from a downtown building.

Officials say the incident was reported around 9:15 p.m. Sunday.

Witnesses told CTV News they saw three men parachuting from a building at Jasper Avenue and 119 Street.

“They came around that building, landed right in the middle of the street,” Murray Billett explained.

“They scooped up the parachutes and ran between those two buildings. It was over in minutes.”

Police said the men landed on the Victoria Promenade and then fled the scene in a waiting vehicle. Officers were unable to locate them.

Billett said he believed there was at least one other person helping the jumpers with the stunt, which he described as well-orchestrated.

“They were driving those parachutes real hard to get around the building and safely land in the middle of the street.”

According to police the men allegedly entered a locked construction site and jumped from one of the top floors of the 36-Storey Pearl Tower.

“As cool as it was I want to remind people how silly this was,” Billett said.

“Any of those could have hooked on that balcony, land on this street and been hit by a truck.”

He added that pedestrians in the area could also have been hurt.

“That concerns me. I don’t want to see anybody lose a kid.”

It is a message that police are hoping will deter copycat jumpers.

“Regardless of how well-prepared jumpers believe they are, this is a very dangerous and illegal activity not at all suited for an urban environment,” EPS Inspector Brian Nowlan wrote in a press release.

Police said jumpers can face charges such as trespassing, break and enter or mischief.

Anyone with information on the incident has been asked to contact police, 780-423-4567, #377 from a mobile phone or Crime Stoppers, 1-800-222-8477.

With files from Nicole Weisberg