A dangerous stunt ended with two teens in hospital after being rescued from a high-voltage transmission tower.

Emergency crews were called to the Powell River tower on Friday evening after the teens climbed up and got stuck at the top.

"They were kids. They were in trouble," Powell River RCMP Const. Tim Kenning told CTV News. Kenning said "everyone" responded, from volunteer firefighters to paramedics.

The teens, aged 17 and 18, climbed to the top of the tower, and were climbing back down when one was hit with an electrical charge.

The older teen's clothes caught fire, and the 17-year-old tried to put out the flames with his hands. He then called 911.

"He didn't abandon his friend when he was extremely injured and hurt and needed that help. His friend stayed there with him and didn't let go until emergency personnel were able to intervene," Kenning said.

The teens were in the tower a total of 3.5 hours before they could be brought down safely. When they got to the ground, they were airlifted to hospital in Vancouver. The older boy still remains in the hospital's intensive care unit.

RCMP and Brookfield Energy are investigating the incident, and police haven't said whether the teens will be charged.

With a report from CTV Vancouver Island's Gord Kurbis