Two workers were killed when a tank full of cement fell on them at a construction site in Najran, a local daily reported Wednesday. Civil Defense and rescue teams arrived at the location to recover the bodies. According to Civil Defense officials, the tank was being lifted to a higher level when it fell on the two workers. The rescue team had to use heavy machinery to cut the tank and empty the cement from inside. The bodies of the two workers were recovered and transferred to King Khaled hospital. The Civil Defense is investigating the accident.