Russian mercenary group Wagner fighting in Ukraine has said it has found the body of one of two British aid workers reported missing over the weekend.
The Foreign Office, which has not confirmed the claim, said it was supporting the families of the two men.
Andrew Bagshaw, 48, and Chris Parry, 28, were last seen heading to the town of Soledar on Friday, where fighting has been intense in recent days.
The Wagner group said on Wednesday a body had been found without naming him.
The claim has not been verified by the BBC.
On social media, the group posted photographs of documents that were said to belong to the missing men.
The statement posted on messaging platform Telegram from the press office of the head of the pro-Kremlin Wagner group claimed the body was found in eastern Ukraine.
The Foreign Office said it was aware of recent reports and was in touch with the Ukrainian authorities.
Later, Downing Street said the reports, which were yet to be verified, were “deeply concerning”.
The Kremlin has told the BBC it had no information on the discovery of the body.
source bbc.com