KIEV, May 1 - Ukraine is seeking more than $16 billion from Russia's Gazprom in its appeal to an arbitration court in Stockholm over a long-running gas pricing dispute between Kiev and Moscow, Prime Minister Arseniy Yatseniuk said on Friday, Reuters reported.

Ukraine's state gas business Naftogaz and Russia's Gazprom are bound by a 10-year gas agreement signed in 2009. Kiev is challenging the price of Russian gas, and billions of dollars in debts which Russia says have accrued, and appealing to international arbitrators for a definitive ruling.