Investigators have detained a Ukrainian security official on suspicion of spying for Russia, authorities said on Thursday, part of an effort by Kyiv to weed out moles nearly a year into a war with Russia.
The official - a lieutenant colonel in the Security Service of Ukraine (SBU) which joined the operation - had revealed the location of military checkpoints and other "secret information", the State Bureau of Investigation (SBI) said.
He allegedly sent the data to his Russian handlers via email and a messaging app. A search turned up mobile phones, Russian SIM cards, cash and other evidence proving "longstanding ties" to Russian state and law enforcement structures, the SBI added.
