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DENTON (CBSDFW.COM) – Police in Denton are investigating what they call a hit-and-run accident that killed a 20-year-old on I-35 after receiving a report about a body in the median of the interstate.

Police received the call at about 10:37 a.m. Sunday about a person lying face-down in the median of I-35 south of Oak Street where the interstate splits to I-35E and I-35W.

Denton police and fire responded to the scene and found a 20-year-old man lying in the median. He was pronounced dead at the scene.

He was later identified as Drake Jager by Denton police.

Investigators believe Jager was struck by a vehicle during the overnight hours. There were no vehicles stopped near the body.

Evidence has also led investigators to believe the suspect vehicle is a Mazda with a missing driver’s side mirror.

All lanes of southbound I-35 were shut down at Oak Street during the investigation.