Russian President Vladimir Putin speaks at a Cabinet meeting in the Novo-Ogaryovo residence outside Moscow, Wednesday, April 9, 2014. President Vladimir Putin has threatened that Russia's state-owned gas company could ask Ukraine to pay for gas in advance, according to Russian state news agencies. (AP Photo/Sergei Karpukhin)

Russia threatens Ukraine on gas supply

MOSCOW (AP) — President Vladimir Putin has threatened that Russia's state-owned gas company could ask Ukraine to pay for gas in advance, acc…