Fast-food chain McDonald's must pay a fine for selling a burger containing the tail of a mouse, a court in Chile has ruled.

The appeals court in the city of Temuco upheld a ruling against the fast-food giant ordering it to pay an estimated €3,000 following the incident in June 2012, according to the court judgment. 

McDonald's must also pay an additional fine but the amount was not specified.

The court said the fine reflected "failures" on behalf of McDonald's in the quality of its service and said there was "neglect" in its quality control.

Following the incident, health authorities temporarily closed the affected branch in Temuco, about 700 kilometres south of the capital Santiago.