Two ATF agents and a Chicago Police officer were wounded in a shooting Wednesday morning in the Morgan Park neighborhood on the city's South Side, CPD Superintendent David Brown said.

A person of interest was questioned, CPD told ABC.

The three were shot and wounded in an attack near the 22nd Chicago Police District headquarters about 5:50 a.m., Brown said during a press conference later Wednesday.

The agents and officer were conducting an undercover operation and were driving in an unmarked police car when they were shot, Brown said.

One ATF agent was hit in the hand and another was struck in the torso area. The CPD officer was grazed on his head, Brown said.

Alderman Matt O'Shea, with the 19th Ward, said he was glad those injured will be OK, but called on President Joe Biden for help with Chicago violence.

He said community members are afraid to let their kids play outside.

"Another example of just where we're at as a city," he said. "Our communities are under siege. Our police officers are under siege; they're outmanned and they're outgunned. We have 100,000 gang members in the city of Chicago right now; they're all armed. They're emboldened. They have absolutely no fear, no respect for life, no respect for the communities that they come from."