Russia's Federal Security Service (FSB) arrested a dual United States-Russian citizen on charges of treason for collecting funds for Ukrainian organizations and openly supporting Kyiv.
A regional court website from Sverdlovsk, where the case was opened, on Tuesday listed the person's name as Ksenia Pavlovna Karelina. It said she is being charged under article 275 of the Russian Criminal Code: treason. Karelina said she is appealing her arrest, according to Russian state media outlet RIA Novosti.
The FSB said earlier Tuesday that a 33-year-old Los Angeles resident was detained in Russia's city of Yekaterinburg for "providing financial assistance to a foreign state in activities directed against the security of our country."
The funds raised were used to "purchase tactical medicine, equipment, weapons and ammunition by the Ukrainian Armed Forces," the FSB said.
"Operational search activities and investigative actions continue. The court chose a preventive measure in the form of detention for the accused," the statement said.
The Sverdlovsk Regional Court press service told RIA her hearing was meant to take place today, but due to the absence of a lawyer, it was postponed until February 29.
CNN has reached out to the US Embassy in Moscow for comment.
This post has been updated with the US citizen's name and other information from RIA.