International human rights activists are decrying reports that at least 100 gay men have been arrested, and three killed, in the Russian region of Chechnya.

A Moscow-owned Russian opposition newspaper, Novaya Gazeta, cited claims by federal law enforcement officials who said the men, ranging in ages from 16 to 50, were detained “in connection with their nontraditional sexual orientation, or suspicion of such.” Those arrests apparently began when a local LGBTQ rights group, GayRussia.ru, applied for pride parade permits, which were immediately denied, The Independent reported April 3.

The reports, however, were quickly dismissed as “absolute lies and disinformation” by a spokesman for Chechnya’s leader, Ramzan Kadyrov. The spokesman, Alvi Karimov, then suggested that no gay people were living in the Muslim-majority region. “You cannot arrest or repress people who just don’t exist in the republic,” he said, according to The New York Times.

As The Advocate points out, however, Karimov’s statement failed to quash the arrest claims. An April 4 Novaya Gazeta report doubled down on their initial report, with a source telling the newspaper that the Muslim-majority region’s anti-LGBTQ efforts include concentration camps. Detainees in those camps, which have been likened to those in Nazi Germany, are allegedly being subjected to physical abuse at the hands of government officials while being ransomed to their families. Those who are released, sadly, may face additional persecution, as extrajudicial “honor” killings have been known to take place, according to The Washington Post.

Details of the alleged detainments remain frustratingly vague. Chechen activist Kheda Saratova, who is on Kadyrov’s human rights council, dismissed the claims, saying she hasn’t had “a single request” on the issue in a Russian radio interview cited by The Guardian. Much like Karimov before her, however, Saratova downplayed the existence of gay people in the region at large. “In our Chechen society, any person who respects our traditions and culture will hunt down this kind of person without any help from authorities,” Saratova said, “and do everything to make sure that this kind of person does not exist in our society.”

Meanwhile, a number of leading human rights organizations have spoken out against the allegations. On Tuesday, GLAAD President Sarah Kate Ellis called on U.S. Ambassador to the United Nations Nikki Haley to condemn the alleged attacks and press for an investigation.

I'm calling on @nikkihaley to speak up against the reported #LGBTQ concentration camps in Chechnya. RT to join me. https://t.co/NM05ag67fA — Sarah Kate Ellis (@sarahkateellis) April 11, 2017

The New York-based advocacy group Human Rights First echoed those sentiments, calling upon Secretary of State Rex Tillerson to speak out against the reports. “In his confirmation hearings, [Tillerson] responded to a question on the human rights of LGBTQ people by noting that ‘American values don’t accommodate violence or discrimination against anyone,’” advocacy counsel Shawn Gaylord said in a statement to The Huffington Post. “Now is the time for him to put the power of his office behind that statement and raise this issue directly with his counterparts.”

The Human Rights Campaign had similar words for Tillerson.

On visit to Moscow, Sec. Tillerson can't turn blind eye to citizens being tortured, killed on suspicion of being gay https://t.co/HkLotBh5q1 — HumanRightsCampaign (@HRC) April 11, 2017

Amnesty International, meanwhile, launched a petition of its own, demanding that Chechnya to “stop abducting and killing” gay men.”The Chechen government won’t admit that gay men even exist in Chechnya, let alone that they ordered what the police call ‘preventive mopping up’ of people they deem undesirable,” the petition, which had over 25,000 signatures as of Tuesday afternoon, read.

On Wednesday, LGBTQ rights activists in London will stage a protest outside of the city’s Russian embassy in response to the reports. “We are seeing very little response to this in the mainstream media, and government action so far is poor,” Steve Taylor, who is the communications director for the European Pride Organizers Association (EPOA) told Gay Star News. “We must not be bystanders, and we must challenge this inhumanity.”

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