Russian prosecutors sent US journalist Evan Gershkovich's case to court on Thursday, paving the way for him to be tried on espionage charges denied by his employer and the White House.
The Wall Street Journal reporter was arrested in March 2023 while on a reporting trip to the Urals city of Yekaterinburg and has been held in Moscow's notorious Lefortovo prison since.
In a statement Thursday, Russia's Prosecutor General accused him of working for the CIA and collecting secret information about tank maker Uralvagonzavod in the Sverdlovsk region where he was arrested.
It said it had sent a criminal case against him to Sverdlovsk Regional Court in Yekaterinburg "for consideration on its merits", without saying when the trial would take place.
Moscow had previously not provided any public details of its case against Gershkovich, saying only that he was "caught red-handed".
Gershkovich became the first Western journalist since the Soviet era to be arrested for spying in Russia when he was detained.
The 32-year-old faces up to 20 years in prison if found guilty.
Washington has accused Moscow of arresting US citizens on baseless charges to use them as bargaining chips to secure the release of Russians convicted abroad.
The US government has declared Gershkovich as wrongfully detained, meaning it effectively regards him as a political hostage.
Russian President Vladimir Putin said in February he would like to see Gershkovich released as part of a prisoner exchange.
In remarks to conservative American TV commentator Tucker Carlson, he said talks between Russia and the United States about a possible swap were ongoing.
However the Russian leader made clear he wanted any deal to involve the release of a Russian jailed in Germany for killing a Chechen dissident.
Among other US citizens detained in Russia is reporter Alsu Kurmasheva, detained last year for failing to register as a "foreign agent". Her employers denounced the case against her as politically motivated.
Former US marine Paul Whelan, in prison in Russia since 2018 and serving a 16-year sentence on espionage charges, is also pushing to be included in any future prisoner exchange.
Gershkovich's family told AFP earlier this year they were counting on a "very personal" promise from President Joe Biden to bring him home.
At Lefortovo prison, the reporter shares a small cell with another inmate.
He gets an hour-long walk in a small prison yard every day, tries to stay fit through exercise and relies on fruit and vegetables sent by friends to supplement the meagre prison diet.
