WASHINGTON, Nov 6 (Reuters) - Communications between Islamic State leaders in Raqqa, Syria, and persons in the Sinai Peninsula included boasts about the downing of a Russian passenger jet over the area, NBC reported on Friday, citing unidentified U.S. officials.
"They were clearly celebrating," NBC Nightly News quoted a U.S. official as saying. The "chatter" included a boast of taking down the plane on Saturday and how it was done.
The U.S. intelligence community intercepted a message from a Sinai group affiliated with Islamic State that warned of "something big in the area" before jet crash.
(Reporting by Doina Chiacu; Editing by Sandra Maler)