A probe has been ordered into the blasts that killed 48...and injured 150...at one of the world's largest refineries...in Falcon state.
4 days after the first explosion...fires in 2 of 9 damaged fuel storage tanks were finally put out...by huge cargo planes dumping flame retardant.
For days...thick, black smoke was visible from more than 20 miles away.
President Hugo Chavez ordered 3 days of national mourning for the victims.
A gas leak is being blamed.
Some witnesses claim the air was full of a propane-like odor for days before the blast and fires.
The giant northwest complex has 3 refineries and 680 fuel tanks...and can produce and store almost 1 million bbls daily.
The Amuay facility is out of service...but Chavez claims the nation has enough fuel supplies stockpiled for 10 days.