MARENGO – Three people were sent to the hospital after a Marengo-area crash, police and fire officials said. Marengo Fire Protection District was called at about 12:10 p.m. Saturday to Route 176 and North Union Road, fire Lt. Noel Gaines said. A 2013 Ford Explorer was northbound on North Union Road when it failed to yield to a stop sign at Route 176, McHenry County Sheriff's Deputy Aimee Knop said.