The Russian Federal Service for Surveillance on Consumer Rights Protection and Human Well-being (Rospotrebnadzor) has filed legal and administrative charges against 400 Russian travel agencies that sold tours to Turkey over the past six months. The Kremlin had previously banned the sale of tour packages and charter flights to Turkey - as well as the importing of certain Turkish goods - after a Russian military jet was downed by a Turkish F-16 over the Turkish-Syrian border on Nov. 24, 2015, for repeatedly violating Turkish airspace.Rospotrebnadzor announced that they supervised 1,700 Russian travel agencies over the past six months to monitor whether they were selling tours to Turkey. According to Russian news agency Tass, Rospotrebnadzor's report said: "In a period from December 2015 to May 2016, Rospotrebnadzor has conducted more than 1,700 extraordinary inspections, opened more than 160 cases in connection with administrative violations and compiled 240 protocols on administrative offences." Rospotrebnadzor continues to supervise Russian travel agencies regarding tour sales to Turkey on their websites.After the Nov. 24 crisis, the furious Russian government announced sanctions on Turkey in response. Russian President Vladimir Putin signed an order in December to extend Russian economic sanctions against Turkey. Ranging from food to travel, the sanctions were imposed after Nov. 24. The Russian government also called on its citizens to not travel to Turkey, which is a famous holiday spot for the cold country's people thanks to its warm beaches.After charter flights to Turkey in late November were cancelled, some Russian airlines and tourism operators decided to impose certain sanctions on Turkey as well. However, Turkish Airlines, which has a number of daily and weekly flights to Russia, has not yet been affected by the crisis. With the inflation rate under pressure since January, Russia has begun stepping back, easing the sanctions that were previously imposed. The government's earlier statement suggests the number of visitors to Turkey in the first quarter of 2016 is sharply down, suggesting regional troubles are making tourists leery. Visitor numbers slipped 4.4 percent on a year-on-year basis for the January-March period to just more than 5.1 million people, according to data from the Turkish Statistical Institute (TurkStat). The average tourist expenditure - the main source of the country's tourism income - was $717 per capita, compared to $737 in the previous quarter.