Rescue workers remove one of three bodies from a sewer manhole in Qassim's University City, Tuesday. A construction engineer and two laborers died when one of them entered the manhole having reportedly left something behind after conducting maintenance work at the site. When he was unable to get out and found himself suffocating, his colleague went in to save him. Attempting to save the two, the engineer then entered only to meet the same fate. “The three died from suffocation when they were overcome by fumes in the manhole,” a Civil Defense spokesman said. “Divers were sent in to recover the bodies and our investigations are underway.” The workers had been conducting maintenance at the seven-meter