Ukraine and Hungary plan to test the operation of a gas interconnection pipeline from July 1 under the interconnection agreement, Head of public joint-stock company Ukrtransgaz Ihor Prokopiv has said.

"From July 1 we will start tests under the agreement with hope that from October 1 it will start operating in full," he said in Kyiv on Thursday.

Prokopiv added that the operation of Russia's Gazprom in the new conditions will be tested as well.

"Tests will imply the applications to Russians using shipper code pairs – we will check how they will behave not to put real supplies under a threat," he said.