Reporters were briefly allowed to film US journalist Evan Gershkovich on Wednesday before the start of his trial in the Russian city of Yekaterinburg on charges of espionage that he denies.
Gershkovich was seen standing in a glass box, with a shaved head.
Gershkovich, a reporter for the Wall Street Journal, is accused by prosecutors of gathering secret information on a company that manufactures tanks for Russia's war in Ukraine. If convicted, he faces a sentence of up to 20 years.
He, his newspaper and the US government all reject the allegations and say that he was just doing his job as a reporter accredited by Russia's Foreign Ministry to work there.
Against the background of the Ukraine war, he and other Americans detained in Russia have been caught up in the most serious crisis between Moscow and Washington for more than 60 years.
President Vladimir Putin has said Russia is open to the idea of a prisoner exchange involving Gershkovich and that contacts with the United States have taken place, but they must remain secret.
The US has accused Russia of conducting "hostage diplomacy". It has designated Gershkovich and another jailed American, Paul Whelan, as "wrongfully detained" and says it is committed to bringing them home.
Iran could be producing enriched uranium in a few months, the head of the UN nuclear watchdog Rafael Grossi was quoted as saying on Sunday, raising doubts about how effective US strikes to destroy Tehran's nuclear programme have been.
The Jerusalem District Court has cancelled this week's hearings in Prime Minister Benjamin Netanyahu's long-running corruption trial, accepting a request the Israeli leader made citing classified diplomatic and security grounds.
The Israeli military ordered Palestinians to evacuate areas in northern Gaza on Sunday before intensified fighting against Hamas, as US President Donald Trump called for an end to the war amid renewed efforts to broker a ceasefire.
Russia used hundreds of drones, cruise and ballistic missiles to attack western, southern and central Ukraine overnight, damaging homes and infrastructure and injuring at least six people, local authorities said on Sunday.
At least seven Palestinians were killed and several others injured early Sunday in a series of Israeli airstrikes targeting Gaza City and Khan Younis in the southern Gaza Strip, Palestinian News & Information Agency (WAFA) reported.