A flag hangs at half-staff in front of a St. Louis Metropolitan Police cruiser in memorial of officer David Lee who died after being hit by a car on Sunday,

An officer is dead after a car struck him on eastbound I-70 near Grand Boulevard Sunday morning. He was setting flares at an accident scene. The St. Louis Metropolitan Police Department has identified the officer as David Lee.

An officer is dead after a car struck him on eastbound I-70 near Grand Boulevard Sunday morning. He was setting flares at an accident scene.

Lee was taken to a hospital where he died from his injuries. Police said Lee was starting to stage at a previous accident on the interstate and was hit by an oncoming car. The driver who hit the Lee stayed at the scene of the crash and has been detained, KMOV reported.

ST LOUIS - An officer with the St. Louis Metropolitan Police Department died after being struck by a vehicle on Interstate 70 Sunday morning while assisting

Lee was taken to a hospital where he died from his injuries. Police said Lee was starting to stage at a previous accident on the interstate and was hit by an oncoming car. The driver who hit the Lee stayed at the scene of the crash and has been detained, KMOV reported.

St. Louis City Police Officer, David Lee, was killed while setting up flares on I-70 near Grand Ave Sunday morning. St. Louis City Police say they have a suspect in custody.The driver who struck Lee stayed on the scene and cooperated with the police.