The Australian reality TV show Big Brother has apologised to the Mexican Government for allowing contestants on Friday Night Games to throw goo-filled balloons at the Mexican flag.
The incident, which aired last Friday, was labelled "offensive" by the Mexican Government.
The Mexican Embassy also wrote to the Australian Communications and Media Authority and TV company Endemol Southern Star demanding "they take adequate measures to avoid this type of incident in the future".
Endemol Southern Star says in a statement they intended no offence to any person, country or institution.
"Friday Night Live is themed each week and June 19's Mexican Night was designed as a tribute to Mexico and its vibrant cultural heritage," the statement said.
The producers have also assured the Mexican Government that "something like this would never happen again".