DENVER - A potentially volatile SWAT situation near Sloan's Lake disrupted the popular Oyster Race on Saturday morning, forcing cyclists to take a detour to avoid the crime scene.
Police officers in full tactical gear smashed the top floor window of a house, looking for an armed burglary suspect on the 3600 block of West 23rd Avenue.
It all happened in the middle a competition that calls itself the "original urban adventure."
The disruption didn't faze Tanya Dillard and her teammates.
"Expect the unexpected," Dillard said. "Yeah I mean that's pretty much part of adventure racing. It's an urban adventure race so it's probably even more."
The situation did pose a challenge for Denver police.
Officers set up a perimeter at 23rd and Lowell, keeping hundreds of racers out of potential danger.
"It's pretty creepy," said neighbor Erik Carlgren.
Carlgren calls the area a relatively quiet neighborhood.
Around 8am, neighbors reported a burglary in progress.
"Definitely makes you want to double check the locks on the doors and stuff," Carlgren said.
Officers arrested one suspect but suspected that another man, possibly armed, was hiding out in a house.
They closed off the area for about four hours and called in the SWAT team.
"It's pretty unexpected. Watching people with guns coming out of their cars just a couple houses down the street," Carlgren said.
Around noon, officers in full tactical gear made their move and broke into the house.
Minutes later, it was over when police discovered nobody was inside.
The SWAT situation was unfolding as hundreds of cyclists were racing past the crime scene to an obstacle course at Sloan's Lake.
"That doesn't surprise me. That's what it's about is kind of like adapting, right? I mean really. It doesn't faze us," Dillard said.
A real-life urban adventure.
Shortly after the burglary police did arrest one person and say their investigation continues.
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