Russian opposition leader Alexei Navalny was arrested on Sunday after arriving at a protest against Russian President Vladimir Putin and the upcoming presidential election, which he claimed was rigged. He is expected to be charged for disrupting public order.

Police arrest Alexey Navalny

Police arrest Alexey Navalny Photo Credit: Screenshot/Alexei Navalny Twitter account

Russian security forces arrested opposition leader Alexei Navalny moments after he arrived at a protest in Moscow on Sunday. Before his arrest, Navalny urged his supporters to take to the streets to protest Russian President Vladimir Putin’s administration and to boycott the upcoming presidential election on March 18.

Navalny, an anti-corruption lawyer, is considered to be the most prominent amongst Putin’s opposers and is head of the political Progress Party and the Russian non-profit the Anti-Corruption Foundation. A video posted online showed Navalny joining about 4,000 of his supporters in a rally near the Kremlin, when a group of armed police officers surrounded him and forcibly detained him.

The rally was declared illegal by Moscow police. Navalny is expected to be charged for disrupting public order.