MOSCOW (AP) - A spokesman for the Russian gas giant Gazprom says the company could cut off supplies to neighboring Ukraine by the end of the week, barring further payments.

MOSCOW (AP) A spokesman for the Russian gas giant Gazprom says the company could cut off supplies to neighboring Ukraine by the end of the week, barring further payments.

Sergei Kupriyanov said in televised remarks Thursday that "if no new funds are received from Kiev, then naturally we cannot continue delivering gas to Ukraine."

Following a bruising dispute over prices and debt that raised fears of supply disruptions in Europe, Russia and Ukraine signed a deal in October requiring Kiev to pay in advance for gas shipments.

Kupriyanov's comments echoed an announcement Wednesday by Russian President Vladimir Putin that Ukraine's latest payment would be good for "another three to four days." Putin did not give a concrete deadline for the halting of deliveries.