KIEV, Ukraine – Ukraine’s president said Tuesday that additional troops are being deployed to the east, where fighting continues to rage between government forces and pro-Russian separatist fighters.

Petro Poroshenko said the units would defend cities still under government control against possible incursions.

His remarks came after Ukrainian security officials claimed over the weekend that Russia has intensified the transfer of troops and military equipment to separatist rebels. Moscow denies it aids the rebels.

“Several new units have been formed that will enable us to repel possible attacks in the direction of Mariupol and Berdyansk, Kharkiv, and areas north of Luhansk and the Dnipropetrovsk region,” Poroshenko said.

Tensions have spiked since the weekend, when rebels held an election that was condemned by the West and Ukraine as illegal and destabilizing.

Associated Press