At least one person is dead following a multi-vehicle crash on northbound Interstate 25 in Lone Tree on Sunday morning.The northbound lanes of I-25 at Lincoln Avenue were closed for several hours, but reopened around 10 a.m.The city of Lone Tree posted the closure on X at 4:30 a.m.It was unknown how many vehicles were involved in the crash or how many people were injured.The cause of the crash is under investigation.The Douglas County Sheriff's Office is assisting Lone Tree with the crash. They asked drivers to avoid the area and plan alternate routes. ...read more read less