A court in the western Russian city of Voronezh has sentenced a former U.S. Marine to 4 1/2 years in prison for attacking a police officer while drunk, Russian news agencies reported.
The American, named by TASS as Robert Gilman, 28, intends to file an appeal, his lawyer said, according to the agency.
Police pulled Gilman off a train in Voronezh in January after complaints from fellow passengers about his behavior, according to the prosecution.
While in custody, Gilman was accused of kicking a police officer, leaving him with bruises.
"This man, who disagreed with lawful actions taken by the authorities, used violence against a police officer who was on duty, kicking him several times," the Investigative Committee said in a statement.
Gilman, who went to Russia to study and obtain citizenship, told the court in Voronezh that he did not remember the incident but "apologized to Russia" and to the police officer.
Russia has sentenced several U.S. citizens to lengthy prison terms in recent years. American basketball star Brittney Griner was sentenced in August to nine years in prison after being found in possession of cannabis oil in vape cartridges.
Paul Whelan, another former U.S. Marine, is serving 16 years in prison on espionage charges that he denies.
Russian officials have said they are in talks with Washington about possible prisoner exchanges. Media reports say they could involve convicted arms dealer Viktor Bout, who is serving a 25-year sentence in the United States.
In April, Russia and the United States swapped Trevor Reed for a Russian pilot convicted of drug smuggling. Reed, also a former U.S. Marine, was sentenced to nine years in prison after allegedly attacking police officers while drunk.