Argentine rescue workers on Friday recovered one more body from the wreck of the commuter train crashed two days earlier, bringing the death toll to 51. Twenty-year-old Lucas Menghini Rey, the 51st victim, was previously reported missing after Wednesday\'s tragedy. His parents had searched for him from hospitals accommodating injured passengers but didn\'t find him. They were later confirmed by station video footage that Rey boarded that train on Wednesday. Rescue workers returned to the train at the family\'s persuasion and found the body between the third and fourth carriages of the crashed train. The packed commuter train slammed onto station buffers at morning rush hour Wednesday while travelling on the railway line linking capital city Buenos Aires to its western suburbs. Reports said the packed train was carrying around 1,500 passengers. Over 700 sustained injuries from the impact. A Chinese woman was among the 51 people killed in the crash, Argentina\'s worst railway disaster in three decades. An investigation has been launched to find out the causes of the accident and a two-day national mourning was ordered for the victims.