J. Christopher Stevens, U.S. Ambassador to Libya, who was killed in an attack on the U.S. consulate in Benghazi, eastern Libya, on Sept. 11, 2012.CNN reported on the personal journal of slain American ambassador Christopher Stevens over objections from his family, a State Department spokesman said Saturday.

The news channel, in a story posted online Saturday, said that it found a journal belonging to Stevens four days after he died in a Sept. 11 attack on the U.S. consulate in Benghazi, Libya. Three other Americans also were killed.

CNN broke a pledge to the late ambassador's family that it wouldn't report on the diary, said State Department spokesman Philippe Reines, a senior adviser to U.S. Secretary of State Hillary Rodham Clinton.  In a blistering statement, Reines called CNN's actions "indefensible."

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