After the Obama administration on Monday hit 11 Russian and Ukrainian officials with sanctions -- a move criticized by Republican lawmakers as too timid -- Russia's Deputy Foreign Minister Sergei Ryabkov was quoted Wednesday by the Interfax news agency as saying the country may have to alter its position on the negotiations over Iran's nuclear program.
The statement is the most serious threat of retaliation by Moscow since the disputed Crimea region voted to join Russia over the weekend, and Vladimir Putin's government moved to annex the peninsula.
NATO and U.S. leaders say they're prepared to do more. (+ FoxNews video) » | FoxNews with contributions from the Associated Press | Wednesday, March 19, 2014
