"The total amount of the imposed administrative fines increased comparing to last week and reached over 9.2 million rubles," the watchdog said in a statement published on its official website.

According to Rospotrebnadzor, a total of 756 cases of price inflation for hotel services had been revealed so far.

Russia's first-ever FIFA World Cup will take place from June 14 to July 15 in 11 host cities, Moscow, St. Petersburg, Kaliningrad, Volgograd, Kazan, Nizhny Novgorod, Samara, Saransk, Rostov-on-Don, Yekaterinburg, and Sochi.