U.S. says Iran may have killed more than 1,000 in recent protests

Iranian security forces may have killed more than 1,000 people since protests over gasoline price hikes began in mid-November, U.S. special representative for Iran Brian Hook said on Thursday.

"As the truth is trickling out of Iran, it appears the regime could have murdered over a thousand Iranian citizens since the protests began," Hook told reporters at the State Department.