The vote was 422-0 in favour of the non-binding measure.

Gershkovich, a US citizen, was arrested in March on espionage charges after Russia’s FSB security service accused him of collecting military secrets in the city of Yekaterinburg. Gershkovich and his employer deny the charges.

He was initially remanded in custody until May 29, but a court last month extended his detention until Aug 30.

The US says he has been wrongfully detained and has called for his immediate release.

The resolution does not have the force of law, but backers said it underscored the strength of support not only for the release of Gershkovich but also for other Americans and U.S. residents held in Russia, including Paul Whelan, who has been detained there since December 2018.

“I want to assure Evan’s friends, his coworkers, and especially his family that I’ve met with, that we will continue our fight every day until we bring him home to you,” Representative Michael McCaul, chairman of the House Foreign Affairs Committee, said in remarks urging support for the resolution.

The vote came as the Republican-controlled House resumed voting on Tuesday, after hard-right Republicans blocked votes for days as a protest over a debt ceiling deal between Republican Speaker Kevin McCarthy and Democratic President Joe Biden.

Gershkovich is being detained at a time when relations between Washington and Moscow are at the lowest point since the Cold War because of Russia’s February 2022 invasion of, and U.S. support for, Ukraine.