The death toll in a gasoline truck explosion in southern Mexico has risen to 18 with the death of a 38-year-old woman.

The explosion occurred in the Gulf coast state of Tabasco on March 26 when villagers tried to take gasoline from a tanker truck that had crashed.

The Tabasco state prosecutor's office said Monday through its Twitter account that the woman had died from her injuries.

The state health agency said 10 people remain hospitalized in Tabasco and three minors are being treated in Galveston, Texas.

State officials are still investigating what ignited the gasoline.

The 15,800-gallon (60, 000-liter) tanker crashed on the road between Villahermosa and Coatzacoalcos. People ignored authorities' warnings to stay away and instead tried to take gasoline from the damaged tanker.