LONDON — The International Paralympic Committee says it is monitoring the tensions between Russia and Ukraine as athletes arrive in Sochi for the Paralympics.

The discord between the Slavic neighbors has escalated since the Sochi Olympics ended Sunday. Ukrainian officials have said armed men they describe as Russian troops took control Friday of key airports in Crimea, where Russia's Black Sea fleet is based.

The Paralympics open Friday further down the Black Sea in the resort of Sochi, and run until March 16.

IPC spokesman Craig Spence told The Associated Press on Saturday that the situation is "on our radar."

With Paralympians arriving Saturday in Sochi, Spence said that "there is no change to our plans for the moment."