Russia's food safety regulator has discovered horse, chicken and cow meat in a sample of pork mince sold at the popular French hypermarket chain Auchan.
Testing showed in addition to pork meat "horse DNA, chicken DNA and cattle DNA", the food safety watchdog Rosselkhoznadzor said in a statement.
Auchan in Russia did not immediately respond to a request for comment from AFP.
In 2013, the revelation that horsemeat was being sold as beef in ready foods in stores across Europe shocked consumers and led to the introduction of harsher checks.
France in April charged eight people over their alleged involvement in a Europe-wide horsemeat trafficking ring.
Horsemeat is not a huge taboo in Russia, where it is eaten as a delicacy by some minority groups.