CHICAGO — A Chicago police officer and multiple other people, including an apparent shooter, were wounded in an attack at Mercy Hospital on the Near South Side that brought out a large police presence Monday afternoon, according to multiple media and law enforcement sources.

The officer was critically injured in the shooting attack at and near the hospital, 2525 S. Michigan Ave., about 3:20 p.m., a police spokesman said.

Mercy Hospital is about 26 blocks south of the Chicago Loop.

“He is in critical condition but receiving excellent care,” police spokesman Anthony Guglielmi said. “Please send your prayers.”

There were “Reports of multiple victims” in the attack, Guglielmi said in a tweet. Fewer than six people were believed shot, according to an official.

“Officers are doing a methodical search … At least one possible offender is shot,” Guglielmi said.

There’s no report yet on how many victims may be involved.

Roads around the medical center have been shut down as the investigation continues.

This story will be updated.