Polish police have deployed additional forces to the border with Russia's westernmost region of Kaliningrad to carry out what the country's authorities are calling an anti-sabotage operation. "Police ensure security [on the border] with the Kaliningrad region in case of potential incidents that could lead to acts of sabotage," Polish police chief Marek Boron told radio station RMF FM. "That's why reinforcements from police departments in several districts arrived in the border area."