DENVER Three motorists were involved in a crash on 6th Avenue near Federal Boulevard, and the westbound lanes are currently closed in the area. The Denver Police Department posted on social media at 10:12 a.m. that they were investigating the crash. It was not immediately clear how many people were involved. DPD said at least one person was seriously injured and transported to a local hospital. Westbound 6th Avenue is closed at Lowell Boulevard, so drivers should find an alternate route. According to Colorado Department of Transportation Cameras, traffic that was stuck behind the crash is being allowed to pass slowly along the shoulder. It's not clear how long 6th Avenue will stay closed. Check COtrip.org for updates on traffic across the state.