Russian gas giant Gazprom has cut another 30 percent of the gas supplies to Belarus from the planned volume, extending the cut to 60 percent of normal volumes, Gazprom's chief said on Wednesday.

"From 10:00 Moscow time (0600 GMT), a delivery cut to 60 percent is introduced," Russian media quoted Gazprom CEO Alexei Miller as telling a commission for the gas row.

He also said the transit of Russian gas across Belarus is continuing uninterruptedly and in full.

"We have two pieces of news. One is good, the other is bad. The transit of Russian gas through the territory of Belarus is effected in full, and the consumers of Russian gas have no problems with supplies," Miller said, quoted by the Itar-Tass news agency.

"The bad news is that Belarus is making no attempts to pay the debt for supplied gas," he added.

Gazprom on Tuesday reduced gas supplies to Belarus by 30 percent of the planned volume, over a debt of 200 million U.S. dollars for gas Belarus consumed.

According to the latest statement by Gazprom on Wednesday, Belarusian state gas transportation company Beltransgaz has paid for the May deliveries of Russian gas at the price stipulated by the contract, but it has not cleared a 192-million U.S. dollar debt for the previous months' gas shipments.