This post has been updated.

A day after Vladimir Putin won the Russian presidency with what officials called an “overwhelming number of votes,” thousands protested the victory in Moscow’s Pushkin Square.

Opposition supporters gather to demand fair elections in central Moscow on Monday. (Denis Sinyakov/Reuters)

The demonstration was fueled by reports of ballot fraud during Sunday’s presidential election, including multiple voting, abuses of absentee ballots and obstruction of election observers. Golos, a monitoring group, said it had received 3,000 complaints of voter irregularities.

Watch live video of the protests here, and follow along with live updates below: