OVD-Info, a legal group that provides assistance for political arrests, and Zona Prava, a human rights group, were also given the designation. Grigory Okhotin, a co-founder of OVD-Info, said that the decision announced Wednesday did not come as a surprise.

“We see this as being part of the pressure campaign against independent organizations and media. This didn’t start today. It’s curious that it happened at the height of the public campaign to abolish the foreign agent legislation, in which OVD-Info was one of the key initiators,” Okhotin said.

Another 22 individuals were designated as “foreign agents’’ Wednesday, the AP reported. This includes Sergei Smirnov, chief editor of Mediazona, and the outlet’s publisher Pyotr Verzilov, who is also a notable member of the feminist protest group Pussy Riot.

For more reporting from the Associated Press, see below:

He added that 222 organizations have joined the campaign so far and said that “it couldn’t have gone unnoticed.”

In recent months, the government has designated a number of independent media outlets and journalists as “foreign agents” and raided the homes of several prominent reporters. The publisher of one outlet that released investigative reports on alleged corruption and abuses by top Russian officials and tycoons close to Putin was outlawed as an “undesirable” organization.

Two other news outlets shut down after authorities accused them of links to “undesirable” organizations.

Human rights groups in Russia have faced similar pressure, with at least two disbanding themselves in recent months to avoid a further crackdown.

The Kremlin, however, has denied that it is stifling media freedoms and insists that the “foreign agent” designation doesn’t bar outlets from operating.

OVD-Info rose to prominence over its meticulous tracking and counting of arrests at street protests in Russia—something activists first did in 2011, during the mass protests triggered by a Russian parliamentary election tainted by numerous reports of voter fraud. For media outlets covering protests, their data have become indispensable over the years, as the authorities largely kept quiet or underplayed the scale of the crackdown on demonstrators.

OVD-Info operates as a legal aid group as well, dispatching lawyers to help detained protesters at police stations and in courts. Just last week, the group was awarded the Civil Rights Defender of the Year award in Sweden.

Okhotin told the AP on Wednesday the group will continue its work no matter what difficulties the “foreign agent” designation will bring.

“Of course we will continue to work as we did before, this cannot stop us,” he said.

Mediazona has been widely known for its live-blogging of high-profile court hearings, as well as critical investigations of police abuse and rights abuses in Russia’s penitentiary system. The outlet said in a statement Wednesday that it doesn’t plan to shut down, but “doing our job will become much difficult from now on.”

“Because of the ‘foreign agents’ label, characters and sources are reluctant to talk to journalists, officials use it as an excuse not to answer our questions, other outlets prefer not to cite Mediazona [they must mention that we’re a ‘foreign agent’], and readers suffer because of the pointless disclaimer,” the statement said, referring to a lengthy disclaimer which those declared “foreign agents” must add to any piece of content they publish.

The Zona Prava rights group was founded by Pussy Riot members Maria Alyokhina and Nadezhda Tolokonnikova, who spent nearly two years in prison for a 2012 protest inside Moscow’s Cathedral of Christ the Savior. It provides legal aid to victims of police abuse, domestic violence, medical errors occurring in civilian and prison hospitals and rights abuses in the armed forces.