(QHA) -

Authorities in Russia have ordered the temporary closing of four McDonald's restaurants in Moscow over "numerous sanitary violations". More of the company 430 Russian franchises are under investigation.

 “Multiple violations of sanitary norms were detected in the sourcing of food and waste disposal in McDonald’s restaurants during inspections carried out between the 18th and 20th of August,”- said an official statement from the watchdog, Rospotrebnadzor.

McDonald's head office in Illinois said it was studying the decision to figure out "what should be done to reopen the restaurants as soon as possible."

Russia's first McDonald's opened on Moscow's Pushkin Square in 1990 and the company sayts it is the most frequented in the world.

To recall, McDonald's restaurants in Crimea have halted their work following the region’s annexation by Russia.