Three people were killed and one was injured in an accident during lifeboat maintenance work at a floating storage and offloading (FSO) vessel operated by Malaysian state energy firm Petronas on Sunday, the firm said.Petronas, or Petroliam Nasional Berhad, said in a statement on Monday the incident occurred around 12.50pm at FSO Sepat off Terengganu state on the east coast of Peninsular Malaysia.Three workers were pronounced dead on arrival at the hospital, while the injured staff member...