Wall Street Journal reporter Evan Gershkovich will remain jailed on espionage charges until at least late June. 

A Moscow court rejected his appeal that sought to end his pretrial detention. The 32-year-old U.S. citizen, detained in March of last year while on a reporting trip, has spent over a year behind bars. Last month, his arrest was extended until June 30, in a ruling that he and his defense lawyers later appealed.

Gershkovich and The Wall Street Journal have denied the allegations. The U.S. government says he's been wrongfully detained.

(Photo by Natalia Kolesnikova/AFP via Getty Images)