Polish Interior Minister Mariusz Kaminski said on Monday the country's Internal Security Agency (ABW) detained a "member of the spy network working for Russian intelligence."
"The suspect kept surveillance of military facilities and seaports. He was systematically rewarded by the Russians," Kaminski said in a Twitter post and added the man is the 15th person arrested as part of the investigation into the espionage network.
In March, Warsaw stated it dismantled an alleged Russian spy ring operating in the country and arrested six foreigners.
