Russian delegation should have attended the UN General Assembly in New York.
Lavrov said that Russia should not put up with such insolence.
"We have already got used to the United States' lack of manners, we will respond accordingly," the first man of Russian diplomacy noted.
Lavrov explained that Moscow would find a way to respond adequately, Sputnik reported.
She stated that Russian delegation in Sochi consisted of 200 members, who were regularly issued visas in the past.
Zakharova had commented on Facebook on the reaction of US officials who stated that they had reviewed every single visa request, adding that the procedure is confidential, and that they have taken this duty "quite seriously".
Namely, Russian Foreign Affairs Minister wrote in an article published in a Russian magazine "Russia in global policy" that liberalism which the West pretends to defend, focuses on the individuals and their rights and freedoms.
A Bulgarian delegation led by National Assembly President Tsveta Karayancheva is on an official visit to Moscow.
Meetings of Bulgarian MPs in the Federation Council and the State Duma, as well as talks with Russian Foreign Minister Sergei Lavrov, are forthcoming.
Last night at the Bulgarian Embassy in Moscow, MPs met with representatives of the Bulgarian community.
Greece wants to enhance relations between the European Union and Russia, Greek Foreign Minister Giorgos Katrougalos said Thursday, adding that Moscow is key to stability in the region.
"We try to play the role of a bridge between the EU and the Russian Federation," Katrougalos said after a meeting with his Russian counterpart Sergei Lavrov in St. Petersbourg.