Russian-Made Missile Hit Malaysia Jet, U.S. Officials Say

A Russian-made air-defense missile appears to have hit the Malaysian Airline System Bhd. plane that crashed in Ukraine, according to U.S. military and intelligence officials.

Evidence so far indicates that the plane was struck by a weapons system known as the SA-11 or Buk, according to four officials who asked for anonymity because an investigation is continuing. The surface-to-air missiles, widely deployed in Eastern Europe, are mounted on vehicles that resemble tanks.