PUNTO FIJO, Venezuela - Venezuela was in mourning Sunday after a massive explosion tore through the country's largest refinery, killing at least 39 people and injuring more than 80 others. President Hugo Chavez declared three days of national mourning Saturday, saying the tragedy affected "the great Venezuelan family, civilian and military."  Among the dead were 18 members of the National Guard - who were protecting the state-owned refining facility in the northwestern town of Amuay - and 15 civilians, Vice President Elias Jaua said. The bodies of another six victims had yet to be identified. Falcon state Governor Stella Lugo had earlier told official television that a 10-year-old child was among the victims.
Another 82 people were injured, Health Minister Eugenia Sader said. Fifteen of the injured remain in hospital, according to Jaua. Chavez expressed his sympathy to the families of the dead, urging calm because "fortunately, the greatest danger has been controlled." Ordering a "thorough investigation," he vowed to help the people who have been displaced from their homes at the refinery complex, which also houses workers and their relatives, and in impoverished neighbourhoods nearby. Energy Minister Rafael Ramirez said the explosion was triggered by a gas leak at the refinery, which is owned by state oil firm Petroleos de Venezuela (PDVSA), the cause of which remained to be determined. "The gas cloud exploded, igniting at least two storage tanks and other facilities at the refinery," he told VTV television.