DALLAS (CBSDFW.COM) – Police in Dallas are searching for the gunman who shot at officers on Monday night in the east Oak Cliff area. One of those officers was injured in the attack.

The incident started at about 7:30 p.m. Monday night. Narcotics officers were dispatched to a home, located in the 4300 block of Fernwood Avenue, after receiving numerous complaints from neighbors about drugs being sold. “The officers walked up to serve this warrant,” said Chief David Brown. “They exchanged gunfire with the occupants inside. The officers returned fire.”

Authorities set up a perimeter around the house and tossed several concussion devices into the residence. When the situation was determined to be safe, officers rushed into the home. But there were no suspects inside. The entire ordeal lasted nearly five hours. During this time, nearby residents were asked to stay in their homes.

Police are not releasing the name of the injured officer because he works undercover. “He received a glancing wound,” Brown said. He was struck in the upper leg and is expected to be okay. He has already been released from Parkland Hospital in Dallas. Brown was not sure if the gunman was also wounded during the shootout.

The incident comes four years and one day after another Dallas Police Department officer, Norm Smith, was killed in a similar situation.

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