A 22-year-old Special Olympics participant who suffers from autism and cannot speak English went missing Friday, Chicago police said.

Haque Rezwanul went missing from the 100 block of East Delaware Place. He was last seen wearing a blue hat with “USA” on the front, a blue shirt with “Bangladesh” written in red lettering on the back, black pants and white sneakers. He also had a light gray and red colored backpack, police said.

Police urge anyone with information about Rezwanul’s whereabouts to call Area Central Special Victim’s Unit at 312-747-8380.

Police said he is a "high risk missing person."