MOSCOW, March 21 (RAPSI) - The Goloseyevsky District Court of Kiev has extended the detention of two Russian nationals, Alexander Aleksandrov and Yevgeny Yerofeyev suspected of terrorism, until May 19, RIA Novosti reported on Monday.

Ukrainian authorities claim that Aleksandrov and Yerofeyev were captured in an eastern region of the country during an attack on a bridge.

The men, who face terrorism charges, serve in the Third Special Forces Brigade, which is based in Togliatti, a city in southern Russia, according to Ukrainian authorities.

The men also face allegations of waging of a war of aggression, illegal border crossing, illegal carrying weapon and ammunition, illegal entry to an occupied territory and unleashing of war. They could be sentenced to life in prison on these charges.

According to one of the defense lawyers, Oksana Sokolovskaya, most of accusations against Aleksandrov and Yerofeyev are unreasonable.

Moscow strongly denies the allegations. The Russian Defense Ministry said earlier that the men "were not on active service in the Russian Armed Forces" at the time of their capture in May 2015.

In April 2014, the Ukrainian authorities began a military operation in Donbas against the local residents who objected to the coup. According to the UN’s latest data, over 6,200 people have been killed in the conflict. Ukrainian officials and some Western states have repeatedly accused Russia of interfering in Ukraine’s domestic issues.

Moscow has repeatedly claimed that it has had absolutely no part in the events in southeastern Ukraine and does not supply the self-defense forces with military equipment and ammunition; that it is not a party to the domestic Ukrainian conflict and is interested in Ukraine overcoming the political and economic crisis.