US President Joe Biden at the North America's Building Trades Unions (NABTU) national legislative conference in Washington, DC, US, on Tuesday, April 25, 2023. 

WASHINGTON — President Joe Biden, speaking Saturday at the White House Correspondents' Association dinner, vowed to continue to work to free Americans believed to be wrongly detained abroad.

During the annual event, Biden mentioned the plight of Wall Street Journal reporter Evan Gershkovich, detained in Russia on March 29 and accused of espionage.