Braving bitter chilly and the specter of arrest, Russians rally in cities throughout the nation.

MOSCOW — 1000’s of protesters throughout Russia took to the streets on Sunday for a second consecutive week to rally for the jailed opposition chief Aleksei A. Navalny, and so they had been met by one of the vital imposing reveals of police drive seen within the nation’s current historical past.

In Moscow, the police ordered seven subway stations across the Kremlin to shut on Sunday and stated pedestrian entry could be restricted within the heart of town — an unheard-of transfer lately disrupting the core of a metropolis of 13 million folks.

Cops had been asking cafe homeowners to show off their Wi-Fi, the Interfax information company reported, an indication that the federal government was getting ready to restrict cellular web entry later within the day.

As they did one week in the past, the protests began in Russia’s Far East and swept throughout the huge nation of 11 time zones, with demonstrations scheduled for midday in cities and small cities alike.

Lower than an hour earlier than the protests in Moscow and St. Petersburg had been scheduled to start out, the protest organizers introduced new beginning factors to attempt to keep away from police cordons in these cities.

Within the Siberian metropolis of Novosibirsk, 1000’s of individuals packed the sidewalks of central streets. Within the Pacific port metropolis of Vladivostok, demonstrators had been pressured onto the ice of a frozen bay, with riot law enforcement officials in pursuit. And in Chelyabinsk within the Ural Mountains area, there was footage of riot law enforcement officials clubbing protesters with batons.

The defiant turnout in so many components of the nation confirmed that the gathered anger with President Vladimir V. Putin stays a potent drive, even with Mr. Navalny and most of his primary allies throughout the nation now in jail.

Mr. Navalny, a 44-year-old anticorruption activist, fell right into a coma after a poisoning in Siberia final summer season, recovered in Germany, flew house to Moscow two weeks in the past and was arrested at passport management.

At a court docket listening to on Tuesday, he might obtain a number of years in jail over parole violations stemming from a 2014 embezzlement case that Europe’s prime human rights court docket known as politically motivated.

Mr. Navalny’s backers say solely the strain of avenue protests can drive the Kremlin to launch the opposition chief, together with the handfuls of his associates and supporters throughout the nation who’re being threatened with prosecution. The Russian authorities has known as the protests in his assist unlawful, threatening anybody who participates with jail time.

Within the frozen port metropolis of Vladivostok, a seven-day practice journey from Moscow on the Sea of Japan, the police moved swiftly to attempt to block protesters from converging within the metropolis heart.

They erected barricades and closed underpasses. So the protesters took to the ice overlaying Amur Bay.

Clasping fingers, they shaped chains as they chanted “Putin is a thief!” and “Russia will likely be free!”

Their actions on the ice, captured on social media, regarded nearly like a dance.

Riot law enforcement officials, initially hesitant to observe on the frozen waters, determined to offer chase. But it surely performed out in seeming sluggish movement, with all sides shifting gingerly on the snow-covered expanse of ice underneath a grey late-afternoon sky.

It was simply certainly one of many outstanding scenes that performed out on Sunday in japanese Russia, the place large-scale protests are uncommon.

Though the gang in Vladivostok was considerably smaller than one week in the past, based on an area journalist, the police had been taking no possibilities.

At the least 96 folks had been detained, based on OVD-Data, an activist group that tracks arrests at protests.

“Folks had been dissatisfied that there weren’t as many individuals and that there wasn’t as a lot exercise as final Saturday,” the native journalist, Tatyana Menshikova, stated by cellphone.

Within the Siberian metropolis of Irkutsk, the place temperatures approached minus 20 Fahrenheit (minus 29 Celsius), the turnout was additionally considerably smaller than the 1000’s who protested final weekend — and the police presence much more imposing.

Aleksei Zhemchuzhnikov, a civic activist, stated chains of riot law enforcement officials with full physique armor and shields had been deployed for the primary time, cordoning off sections of town heart. Cell web entry was lower off, he stated.

“For Irkutsk, this was a primary,” Mr. Zhemchuzhnikov stated of the police response. “They had been scared.”

Even earlier than Russians gathered for a second week of protests, the Kremlin made it clear that any demonstrations could be met with an excellent higher present of drive.

The massive scale of the nationwide operation of current weeks to defuse the anger that Mr. Navalny sparked has revealed the nervousness within the Kremlin.

Pictures and video footage from throughout the nation confirmed traces of tons of of riot law enforcement officials deployed to stop Mr. Navalny’s supporters from with the ability to collect in a single place. Within the Siberian metropolis of Krasnoyarsk, the authorities dumped snow onto two central squares to make them impassable for pedestrians.

On the protests final weekend, which passed off in additional than 100 cities, some 4,000 folks had been arrested, based on an activist group. Many had been later launched, however some acquired jail phrases for violating public-gathering legal guidelines and others have been threatened with prison prosecution for alleged violence.

When the police got here to detain Anastasia Vasilyeva, a doctor who leads a pro-Navalny group known as the Alliance of Medical doctors, she used the piano as her technique of defiance.

A few of Mr. Navalny’s shut allies have additionally been detained in current days, together with his brother, Oleg Navalny, and Maria Alyokhina, of the punk band Pussy Riot. They had been each positioned underneath home arrest.

Navalny’s return to Russia and the next protests have remodeled the political panorama.

For years, the Kremlin tried to disregard the opposition chief Aleksei A. Navalny, proper all the way down to avoiding the very mention of his name.

However for the reason that first wave of protests final week, Russian officers have drastically reversed course.

President Vladimir V. Putin’s spokesman appeared on a prime-time present on state tv and denied Mr. Navalny’s assertion that Mr. Putin had a secret palace on the Black Sea. On one other marquee program, the host devoted 40 minutes to Mr. Navalny, who was described as partaking in “political pedophilia.” The night newscast confirmed tweets by Western officers in assist of Mr. Navalny as proof that he was working in opposition to Russian pursuits.

And on Saturday, Russia’s state tv channels aired an interview with a billionaire friend of Mr. Putin, Arkady Rotenberg, wherein the enterprise magnate claimed that the “palace” truly belongs to him.

“We wish to construct an condo lodge there,” Mr. Rotenberg stated.

The tightly scripted, all-hands assault on Mr. Navalny underlined how the opposition chief’s dramatic return to Russia on Jan. 17 and his arrest have modified the panorama of Russian politics.

Mr. Putin stays in agency management of the levers of energy. However Russians sad with their president — lengthy a weak, various and atomized group — out of the blue have a transparent chief round whom to rally, and the federal government seems not sure about the right way to combat again.