Police are investigating a non-aggravated assault that involved a recently discharged patient hugging a staff member unprovoked Friday morning outside the University of Michigan Hospital, 1500 East Medical Center Drive in Ann Arbor, according to the daily incident log.

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An employee told police that a man approached her around 10:18 a.m. near the loading dock, grabbed her coffee and hugged her. The man left when another staff member "interrupted the confrontation," according to the U-M police log.

Responding police officers were unable to find the man, but he was identified as a recently discharged patient.

The suspect was described as a white male, very dark tan, 40s, 6 feet tall, shoulder-length greasy dark brown hair, wearing blue jeans, a white shirt with “Staff” written on the back, red hospital socks and no shoes.

John Counts covers crime and breaking news for The Ann Arbor News. He can be reached at johncounts@mlive.com or you can follow him on Twitter. Find all Washtenaw County crime stories here.