Five workers were hurt when a fire broke out at the Lázaro Cárdenas refinery in Minatitlán in the Mexican Gulf coast state of Veracruz, state oil and gas company Pemex said on Thursday.
Pemex said in a statement the fire in a catalytic plant that had been closed for maintenance has been put out. The rest of the refinery was operating normally, it said.
Four workers suffered burns and were taken to a local hospital, Pemex said. Another worker fell as he operated a fire hose during the emergency response.
The Minatitlán refinery's capacity was raised to 246,000 barrels per day in 2012. The facility was also hit by a fire in early September.