Petrochemical plant blast toll 32

Four more people have been found dead after last week's explosion at a petrochemical plant in southeastern Mexico, raising the death toll to 32, state oil giant Pemex and Mexican plastic pipe maker Mexichem said in a joint statement on Sunday.

The vinyl petrochemical plant in the Gulf coast state of Veracruz is a joint venture between Pemex's petrochemical unit and majority owner Mexichem.

Pemex's CEO has said that last week's blast was caused by a leak but he did not how the leak had happened exactly.

It was the latest in a series of fatal accidents at the company.

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