The Ukrainian Security Service (SBU) has detained a married couple suspected of spying for Russia in the Black Sea city of Odesa, one of Ukraine's largest ports.
An SBU statement issued on Thursday did not name the couple but accused them of collecting intelligence for Russia on locations for possible military deployments and the movement of air defence units.
It said the couple were believed to be Russian military intelligence officers who had planned to create a network of agents in southern Ukraine.
