BRUSSELS, March 3 - A discount on gas supplies for Naftogaz Ukrayiny can be discussed, but would only be possible by means of lowering the export duty on Russian gas, as with the 'winter package' for Ukraine, Russian Energy Minister Alexander Novak told the Rossiya-24 TV channel.

Novak said specific prices for gas when the 'winter package' expires on April 1 were not discussed at yesterday's trilateral talks in Brussels.

He said Gazprom and Naftogaz had a contract "and the contract will still be valid after April 1."