Police investigated a bomb threat called in late Thursday afternoon to the downtown Swissotel Chicago.
Officers responded to the phone threat about 4:30 p.m. to the hotel at 323 E. Wacker Drive, according to Chicago Police.
The “all clear” was given about 6:10 p.m., police said.
No one was hurt and no arrests have been made. Area Central detectives are investigating.
A hotel phone operator declined to comment.