Around 50 demonstrators were reportedly detained overnight from Sunday to Monday at two opposition encampments at Arbat and Kudrinskaya Ploshchad.
Around 10 people were arrested at a camp near a statue of poet Bulat Okudzhava on Arbat, according to witnesses, Ekho Moskvy reported Monday. Another 40 protesters were detained by police at Kudrinskaya Ploshchad, art group Voina wrote on its Twitter account early Monday.
A few dozen people remained at the site on Arbat on Monday afternoon, while another group of protesters has headed to Kudrinskaya Ploshchad, Ekho Moskvy reported.
An anti-Kremlin protest camp has been migrating to various sites around the city center since May 8, among them Staraya Ploshchad near the presidential administration offices and Chistoprudny Bulvar near a statue to Kazakh poet Abai Qunanbayuli, from which the movement gained the unofficial name Occupy Abai.
After a week-long stint at Chistoprudny Bulvar, the camp has been broken up by police almost nightly. Over the weekend, police cleared the camp at Kudrinskaya Ploshchad, citing complaints from local residents and violations of unnamed sanitary norms regarding food eaten by protesters.