Russian opposition leader Alexei Navalny has been taken to hospital after an antiseptic green dye was splashed on his face in Moscow.
It is the second time he has been attacked with zelyonka ("brilliant green" in English) this year.
The dye is a common antiseptic in Russia and has been used in protests there and in Ukraine.
"It looks funny but it hurts like hell," Mr Navalny tweeted.