Britain summons Russian ambassador over reports of military incursion into Ukraine

LONDON (Reuters) - Britain summoned Russia's ambassador on Friday to clarify reports of a Russian military incursion into Ukraine and a build-up of equipment near the border, the Foreign Office said. NATO has accused the Kremlin of escalating the conflict in Ukraine, following reports that a small column of Russian armored vehicles had crossed overnight into an area of Ukraine where pro-Moscow rebels are battling government forces. The Foreign Office said in a statement that it had summoned Ambassador Alexander Yakovenko "to clarify reports of Russian military incursion into Ukraine". (Reporting by Guy Faulconbridge; editing by Stephen Addison)