Rybka pleaded guilty to soliciting in Thailand/Reuters
A Belarusian model who said she had evidence of Russian collusion with Donald Trump's election campaign is now in Russian police custody.
Nastya Rybka (real name Anastasia Vashukevich) was detained at Moscow's main airport after being deported from Thailand for soliciting.
Her lawyer posted a video on Instagram which, he says, shows her arrest, reports BBC.
A woman resembling her and looking sedated struggles as four men push her into a wheelchair, then carry her.
The video clip posted by lawyer Dmitry Zatsarinsky has now been tweeted by Russian broadcasters and anti-corruption blogger Alexei Navalny.
Mr Zatsarinsky said Rybka, 27, had planned to get a connecting flight to Minsk, the Belarusian capital, but had been seized and dragged from the transit zone on to Russian territory, then whisked away to a police station.
He called the Russian action "an international scandal".
A Russian interior ministry statement, quoted by Russian media, says Rybka and three others detained with her at Moscow's Sheremetyevo airport are accused of "luring into prostitution and practising it". The crime can be punished with up to six years' jail.
Among the four held is Alexander Kirillov, a Belarusian self-styled sex guru, who was in custody with her in Thailand.