Russian security forces arrested more than 5,100 people on Sunday at demonstrations to demand the release of jailed opposition leader Alexei Navalny.

Riot police dispersed protests across the country in support of Putin’s critic Alexei Navalny, detaining more than 5,100 people who had taken to the streets to demand he be set free.

The protesters, who took to the streets in 35 Russian cities in temperatures as frigid as minus-50 Celsius, demanded the release of opposition leader Alexei Navalny.

The protestors were roughly dragged off by helmeted riot officers to police buses and detention trucks.

The demonstrations stretched across Russia’s vast territory, from the island city of Yuzhno-Sakhalinsk north of Japan and the eastern Siberian city of Yakutsk.

Russian authorities made extensive efforts to stop the flow of demonstrations after tens of thousands of people gathered nationwide at Russia’s largest anti-government protests.

Meanwhile, the European Union the United States criticized widespread detentions in Sunday’s protests in support of Russian opposition figure Alexey Navalny.

" I deplore widespread detentions and disproportionate use of force against protesters and journalists in #Russia again today. People must be able to exercise their right to demonstrate without fear of repression,“ the EU's foreign policy chief Josep Borrell said, also urging Russia to comply with its international commitments.

I deplore widespread detentions and disproportionate use of force against protesters and journalists in #Russia again today. People must be able to exercise their right to demonstrate without fear of repression. Russia needs to comply with its international commitments.

— Josep Borrell Fontelles (@JosepBorrellF) January 31, 2021

“The U.S. condemns the persistent use of harsh tactics against peaceful protesters and journalists by Russian authorities for a second week straight. We renew our call for Russia to release those detained for exercising their human rights, including Aleksey Navalny,” tweeted Antony John Blinken, the US Secretary of State.

The U.S. condemns the persistent use of harsh tactics against peaceful protesters and journalists by Russian authorities for a second week straight. We renew our call for Russia to release those detained for exercising their human rights, including Aleksey Navalny.

— Secretary Antony Blinken (@SecBlinken) January 31, 2021

Who is Alexei Navalny?

Alexei Anatolievich Navalny is a Russian opposition leader, politician, lawyer, and anti-corruption activist. He came to international prominence by organizing demonstrations and running for office, to advocate reforms against corruption in Russia, Russian President Vladimir Putin, and Putin's government. Navalny has been described as "the man Vladimir Putin fears most" by The Wall Street Journal.

Putin avoids directly referring to Navalny by name. Navalny is a Russian Opposition Coordination Council member, the leader of the Russia of the Future party, and the founder of the Anti-Corruption Foundation (FBK).

In a 2011 radio interview, he described Russia's ruling party United Russia as a "party of crooks and thieves", which became a popular epithet. Navalny has been arrested several times by Russian authorities.

He received two suspended sentences for embezzlement in two cases, one in July 2013 and another in December 2014. Both cases are widely considered to be politically motivated and to bar him from running in future elections.

The European Court of Human Rights (ECHR) ruled that the cases violated Navalny's right to a fair trial, however, they were never overturned. In total, Navalny won 6 complaints against the Russian authorities in the ECHR for a total of €225,000.

In 2013, he ran in the Moscow mayoral election and came in second, with 27% of the vote, losing to incumbent mayor Sergey Sobyanin, a Putin appointee.

In December 2016, Navalny tried to run for President of Russia during the 2018 election but was barred by Russia's Central Electoral Commission and later the Supreme Court of Russia due to a criminal conviction.

In March 2017, Navalny and the FBK released the documentary He Is Not Dimon to You, accusing Dmitry Medvedev, the then prime minister and former president of Russia, of corruption, leading to mass protests across the country.

In January 2021, they released the documentary Palace for Putin, accusing Putin of corruption, leading to mass protests across the country.

On 20 August 2020, Navalny was hospitalized in serious condition after he was sickened with a nerve agent during a flight from Tomsk to Moscow. He was medically evacuated to Berlin and discharged on 22 September. Russian prosecutors have refused to open a criminal investigation into the matter.

Though the Kremlin denied involvement in his illness, the EU and the UK responded by imposing sanctions on six senior Russian officials and a state chemical center.

On 17 January 2021, he returned to Russia, where he was immediately detained on accusations of violating the terms of a suspended jail sentence. (ILKHA)