In this video grab provided by the RT channel , Ruslan Boshirov, left, and Alexander Petrov attend their first public appearance in an interview with the Kremlin-funded RT channel in Moscow, Russia, Thursday, Sept. 13, 2018. The two Russian men charged in Britain with poisoning a former Russian spy with a deadly nerve agent appeared on Russian television on Thursday, saying they visited the suspected crime scene as tourists. (RT channel video via AP)

In this video grab provided by the RT channel , Ruslan Boshirov, left, and Alexander Petrov attend their first public appearance in an interview with the Kremlin-funded RT channel in Moscow, Russia, Thursday, Sept. 13, 2018. The two Russian men charged in Britain with poisoning a former Russian spy with a deadly nerve agent appeared on Russian television on Thursday, saying they visited the suspected crime scene as tourists. (RT channel video via AP)

MOSCOW (AP) — Two journalists say the passport file of one of the suspects in the poisoning of a Russian former double agent and his daughter in England contains a telephone number that appears to belong to Russia’s Defense Ministry.

Belligcat, an online investigative organization headquartered in England, published a phone number Friday that it said came from what it described as the passport records of Alexander Petrov, one of the two men British authorities charged in the poisonings and alleged were Russian military intelligence agents.

The number does not bear a city code. Oliver Carroll of British newspaper The Independent and Patrick Reevell of ABC News tweeted they called it using a Moscow prefix and the person who answered said they’d reached a Defense Ministry number.

Calls to the number from The Associated Press were not answered Saturday.