Howard County police are investigating a fatal collision in Elkridge overnight in which one person was killed.

At approximately 2 a.m., a 2021 Toyota Corolla was traveling southbound on Route 1 at Blue Stream Drive when it struck the back of a tractor trailer. The driver and sole occupant of the Corolla, 32-year-old Matthew Diehl of Elkridge, was pronounced dead at the scene. The driver of the tractor trailer was uninjured. 

The cause of the collision remains under investigation. Route 1 in the area of Blue Stream Drive was closed for approximately 3 ½ hours. 


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