Over 400 shootings over US holiday weekend 1:00
(CNN) -
Two officers from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) and a Chicago police officer were shot while in a car early Wednesday morning, it reported. Chicago Police Superintendent David Brown.
Despite the attack, those affected suffered non-life threatening injuries, Brown added.
One of the ATF officers was shot in the hand, the other was shot in the side / torso / arm area and the Chicago police officer was rubbed on the back of the head with a bullet, it said. the superintendent.
At least 150 people were killed in more than 400 shootings during the July 4 weekend in the United States.
"Officers were attacked from the street onto the entrance ramp while in their car," when they entered Interstate 57, he said.
At least 10 mass shootings in the US over the weekend 0:52
The officer is the 36th Chicago Police Department officer who has been shot this year, Brown said.
One of the ATF agents is a woman and the other agent and the police officer are men, Brown said.
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They were conducting an undercover investigation and were in an unmarked vehicle when they were attacked, Brown said.
"We want to catch these suspects as soon as possible," Brown said.
He added that he did not know if more than one suspect was involved in the shooting.
Attacks on Police Chicago