The number of fatalities after a leak caused a deadly petrochemical plant blast has risen to 24, officials have confirmed.
Pemex said the death toll could rise.
The company’s chief executive Jose Antonio Gonzalez Anaya travelled to the site of the blast near the port of Coatzacoalcos.
It is not yet clear what caused the accident.
The massive explosion at the facility’s chlorinate 3 plant in the Gulf state of Veracruz also injured 136 people, 13 of them seriously.
Another 18 people were unaccounted for, and one badly damaged part of the plant had yet to be scoured.
“We know there was a leak, what we don’t know is why, but everything points to an accident,” Gonzalez Anaya said.