http://www.cnn.com/2016/07/08/us/phi...sts/index.html

Dallas sniper attack: 5 officers killed during protests against police

(CNN)Shooters killed five officers during protests against police in downtown Dallas, marking the deadliest single attack on U.S. law enforcement since September 11, 2001.
The gunfire started Thursday night as demonstrators marched against the shooting deaths of two African-American men by police in Louisiana and Minnesota.

A total of 11 officers were shot, and some of the six officers injured are undergoing surgery, authorities said.
It was the deadliest single attack on law enforcement since the 2001 terror attacks, when 72 officers died, according to the National Law Enforcement Officers Memorial Fund.