On Sunday, Antonov announced that Yumasheva had been detained at the airport in New York, and an FBI officer asked her "obscure and unacceptable questions" for an hour, and then offered to continue the conversation in an "informal setting."
"We have asked our Consulate General (in New York) to accompany Inga [Yumasheva] during her transfer from the San Francisco - New York domestic flight to the international New York – Moscow flight. We hope that everything goes well," Antonov said on Sunday on the margins of the Fort Ross forum.
Earlier on Sunday, the Russian Foreign Ministry expressed strong protest to the United States in connection with the questioning of Yumasheva, who is a member of the Committee on International Affairs of the State Duma (lower house of the Russian parliament).
The Russian Embassy has sent a note of protest to the US State Department over the incident.