Greater Sudbury Police have arrested a man wanted for a sexual assault of a woman in August 2018. (File)

Greater Sudbury Police are trying to help a mentally distressed man in Hanmer Thursday afternoon.

In a tweet, police said the man is naked and has been has been running in and out of traffic on MR80, in the area of Cote Boulevard.

He has also run in and out of businesses in the area.

"If you see police in the area please remain away," the tweet said. "The male will be brought to HSN for medical treatment."