Since the Russian-British national was released from a Siberian prison after being found guilty of treason for opposing the conflict in Ukraine, there has been increased cause for concern.
Transfers between Russian prisons are confidential and may last many weeks.
According to Lord Cameron, Russia “must urgently” provide Kara-Murza’s attorneys with his whereabouts.
When inquiries were made to the Omsk correctional colony where he was being detained, they were told he had left.
Lord Cameron wrote on X, the social networking site that was formerly known as Twitter, “I’m deeply concerned for Mr. Kara-Murza – a British national imprisoned in Russia for speaking out against the invasion of Ukraine.”
Following his transfer “in an unknown direction” from a punishment cell at the penitentiary colony where he had been detained since September 2023, the activist’s wife, Eugenia Kara-Murza, announced on Monday that she had learned of the development.
She reportedly alluded to two claimed assassination attempts in which her husband was poisoned and almost died. “There are no grounds for his transfer and that makes it even more frightening as my husband is in the hands of the same people who tried to kill him twice, in 2015 and 2017,” she added.
“I demand that the Russian government provide us with information about my husband’s whereabouts,” she continued.
“I stand with his wife,” the foreign secretary of Great Britain continued.
April saw the 25-year sentencing of Mr. Kara-Murza for disseminating “false” information.