A teen died after falling off the roof of a Colorado school while playing a game with his friends, according to reports.
Police said the boy was playing a dangerous game of "capture the flag" on the roof of Denver Academy, a private school, when he fell.
One of the boy's friends told CBS that he thinks his friend tripped.
"There was like a ledge, and there was a gap that you couldn’t see that led to the ground. And I’m pretty sure he just tripped and fell down there," said Peter Mesropov. "All I saw was just Paul lying there. And there was blood on his head and in his nose."
According to local reports, the 17-year-old boy was jumping from building to building Friday night and misjudged one of his jumps, causing him to fall two stories and hit his head.
“We received a phone call from the victim's friend who had reported that his friend had a fall and had hurt himself," said John White, a spokesman for Denver Police.
The boy was transferred to the hospital in critical condition, and later died.
Police said they do not suspect foul play and called the death a "terrible accident."
None of the boys were students at the school, according to reports.