President Barack Obama is condemning an explosion that killed at least 35 people at Moscow's busiest airport as "an outrageous act of terrorism against the Russian people."
Obama also extended his condolences to the Russian people, whom he says have suffered greatly from terrorism.
White House press secretary Robert Gibbs says the president was briefed about the explosion Monday by John Brennan, his counterrorism adviser. Gibbs says the U.S. will extend any assistance the Russians may want.
