BALTIMORE (WJZ) — A 16-year-old boy was shot by officers after they believed the teen was armed with a gun, according to Baltimore police.

The Baltimore Police Department said the shooting happened in the 3900 block of Erdman Avenue. Two officers were on patrol in the area around 4:50 p.m. when they saw some kind of incident happening at the intersection of Erdman and Bonview avenues, Police Commissioner Michael Harrison said.

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“The officers exited their vehicle and approached what they thought they believed was the subject standing in front of 3916 [Erdman Avenue] armed with a handgun,” Harrison said.

At least one officer discharged a firearm, the commissioner said. It’s unclear how many rounds were fired.

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The teen was struck in the arm and he’s expected to survive.

The gun the suspect was carrying is believed to be a replica, Harrison said.

The city’s police union reports no officers were injured. The incident is under investigation.

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This story was updated on Monday, April 27.