The U.S. won't send a presidential delegation to the
The British government made a similar announcement Sunday, with British officials boycotting the Paralympics and Prince William canceling his trip to the Games "on the advice of government."
British athletes are still permitted to participate in the Games, which begin Friday.
The U.S. and its allies are weighing options on how to react to Russia sending additional military forces last week to Crimea, where Russia has long leased naval facilities from Ukraine.
For last month's
That move was largely thought to be in response to Russia's anti-gay laws.