Seven workers have died while cleaning a tank at one of Mexico's main breweries.
The group were killed at the Grupo Modelo plant in Mexico City where Corona - one of America's favourite imported beers - is made.
An investigation is looking into whether they were overcome by toxic fumes during the incident yesterday.
Mourning: Relatives of one of the seven workers who died in an accident at the Grupo Modelo brewery in Mexico City comfort each other yesterday
Plant manager Francisco Lopez Bravo told local media the workers were trapped inside the cistern while doing maintenance work.
He said there are no other risks at the brewery and that it continued to operate on Sunday.
The accident happened in a tank that was undergoing maintenance and cleaning, a spokeswoman for the company said in a statement. No details were provided. Grupo Modelo said it has informed authorities and has begun investigating the accident.
The firm, maker of the number one imported beer in the United States, is in the process of being sold to Belgian-based Anheuser-Busch InBev.
Tragedy: Rescue vehicles wait outside the brewery. Investigators are examining whether the workers were overcome by toxic fumes while cleaning the tank
Accident: The accident happened in a tank that was undergoing maintenance and cleaning, a spokeswoman for the company said in a statement
'Modelo is deeply sorry for this incident and will support the affected families permanently,' the statement said. The spokeswoman did not say whether the accident would affect production.
Modelo's Mexico City plant was the company's first and it began operating in 1925, according to the company's website. The plant had a capacity of 11.1 million hectoliters in 2011, about 16 percent of Modelo's total.
Modelo and ABI on Friday said they had reached an agreement for a framework to settle a lawsuit brought by the US Justice Department in January over concerns the deal would lead to higher beer prices in the United States.
