Sens. Chris Coons, D-Delaware, and Marco Rubio, R-Florida, recently urged Secretary-General of the U.N. António Guterres to support a full and impartial investigation into the murders of Russian journalists Orkhan Dzhemal, Kirill Radchenko and Alexander Rastorguyev, who were investigating the activities of Wagner, a Russian mercenary group, in the Central African Republic.

“We write with great concern regarding three Russian journalists — Orkhan Dzhemal, Kirill Radchenko and Alexander Rastorguyev — who were killed in an ambush by unknown assailants in the Central African Republic on July 31. They were reportedly in the country investigating the activities of Wagner, a private Russian mercenary group that has been deployed in Syria and Ukraine and that is reported to be linked to Yevgeny Prigozhin, a catering magnate close to Vladimir Putin,” the senators wrote.

“The journalists were working on a documentary about Wagner for the Investigations Management Center, an independent media project supported by Mikhail Khodorkovsky, an exiled opponent of Putin. While the circumstances of the ambush are still unclear, Russian state media have been quick to blame the killings on a ‘robbery,’” the senators wrote.

“The murders of journalists come amid increased Russian involvement in the Central African Republic. With U.N. approval, the Russian Federation has delivered arms and ammunition and provided instructors for the CAR military. According to a recent report by the U.N. panel of experts on the Central African Republic to the U.N. Security Council, Russian arms shipments have ‘led to waves of rearmament’ by various factions in the country. Earlier this year, Russia’s Wagner group was deployed to the Central African Republic to provide a security detail for President Faustin-Archange Touadéra,” the senators wrote.

“According to the editor-in-chief of the Investigations Management Center, Andrei Konyakhin, the journalists coordinated their movements with the U.N. Multidimensional Integrated Stabilization Mission in the Central African Republic, and the U.N. mission recommended their driver (who witnessed and survived the ambush),” the senators wrote.

“We respectfully ask you to engage the relevant U.N. mechanisms to conduct a full and impartial investigation into the circumstances of the murder of Orkhan Dzhemal, Kirill Radchenko and Alexander Rastorguyev, and to ensure full cooperation by the governments of the Central African Republic and the Russian Federation,” the senators wrote.