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.
A United Nations Commission of Inquiry concluded on Tuesday that Israel has committed genocide in Gaza and that top Israeli officials including Prime Minister Benjamin Netanyahu had incited these acts.
Qatar and the United States are on the verge of finalising an enhanced defence cooperation agreement, top US diplomat Marco Rubio said on Tuesday, after Israel's attack on Hamas political leaders in Doha last week drew widespread condemnation.
Israel unleashed a long-threatened ground assault on Gaza City on Tuesday, declaring "Gaza is burning" as Palestinians there described the most intense bombardment they had faced in two years of war.
US President Donald Trump sued the New York Times, four of its reporters, and publisher Penguin Random House for at least $15 billion on Monday, claiming defamation and libel, and citing reputational damage, a Florida court filing showed.
Australia urged social media platforms on Tuesday to employ "minimally invasive" methods to check the age of users covered by its world-first teen social media ban, which take into account artificial intelligence (AI) and behavioural data.