The US is threatening to block arms supplies to Ukraine due to attacks on Russian oil refineries, according to the Financial Times, citing sources. Washington is putting pressure on both European capitals and Kiev, demanding an end to attacks on Russian oil infrastructure, and using arms supplies as a means of leverage.

The US is threatening to block arms supplies to Ukraine due to attacks on Russian oil refineries, according to the Financial Times, citing sources. Washington is putting pressure on both European capitals and Kiev, demanding an end to attacks on Russian oil infrastructure, and using arms supplies as a means of leverage.