Nov 22 (Reuters) - Russia's Gazprom could start reducing gas supplies to Moldova via Ukraine from Nov. 28, it said on Tuesday, accusing Ukraine of keeping gas supplies destined for Moldova.

"The volume of gas supplied by Gazprom to the 'Sudzha' gas measuring station (GMS) for transit to Moldova via Ukraine exceeds the physical volume transmitted at the border of Ukraine with Moldova," Gazprom's statement said.

Moldova paid for some November gas supplies on Monday, Gazprom said, adding that Ukraine kept 52.52 million cubic meters of gas meant for Moldova on its territory.

It added that if the transit imbalance persists then it would begin reducing gas supply to the Sudzha GMS for transit via Ukraine from 10:00 a.m. on Nov. 28, "in the amount of the daily underderlivery". (Reporting by Reuters)