Commander Paul Bauer, of the 18th District, was chasing a suspect when he was "shot multiple times", Police Superintendent Eddie Johnson said at a news conference. It wasn't immediately clear if the shooting occurred inside or outside the building.
"It's a hard day for us, but we'll get through it", police Superintendent Eddie Johnson said outside the hospital.
Patrol officers had approached a man in the street last afternoon who was described as acting suspiciously.
A "person of interest" has been taken into custody, police said.
"They actually had us locked in Walgreens", one person in the area told CBS.
Bauer was taken to Northwestern Memorial Hospital with a chest wound.
CTA said all buses and trains are running normal near and around the Thompson Center. "This afternoon, a CPD commander was shot while assisting fellow officers".
Bauer, 53, was a 31-year veteran of the department. The I-Team has learned the officer was shot twice in the head. Officers Anthony Morelli, 54, and Eric Joering, 39, were shot and killed by a man, police say, shouldn't have been able to have a gun due to felony convictions.
A witness told the Chicago Tribune she heard around five shots. She said the fight initiated just outside the building near a set of emergency exit stairs.
During his tenure in the Near North District, Bauer spoke publicly about trying to rebuild trust in the community but also the frustration he felt about the "high bar to prosecution" when it came to career offenders.
"I ask the citizens of this city keep the Bauer family in their prayers", Johnson said, adding that he would meet with his wife and daughter.
He follows this up by announcing that Jason Jordan has had to undergo neck surgery and that he will miss WrestleMania . Even if it's not Asuka, we should expect the seeds to be planted for her first feud, and subsequently, first match.
Luke Rockhold can win the interim middleweight title but Romero won't claim the belt if he wins the fight. Rockhold appears to be in good spirits, though, who took to social media to congratulate the victor .
Doctors Without Borders (Medecins Sans Frontieres) estimates 6,700 Rohingya died in the first month of violence. Mr Johnson visited a UNICEF child-friendly site where he saw the efforts being made to keep young people safe.
The bus crash happened near a large horse racecourse where special arrangements had been made due to expected heavy traffic. Last September, three people were killed and 31 injured after a Citybus double-decker mounted a kerb in Sham Shui Po.
Philadelphia Eagles offensive coordinator Frank Reich is also a top candidate and seems to be the most likely to be hired. After the Josh McDaniels fiasco, the Colts have locked in their head coach, Eagles' offensive coordinator Frank Reich .
There are also concerns it could uncover new security vulnerabilities in iOS, which may be found by attackers. Apple though ruled out any such possibility claiming the iBoot process that has got leaked pertains to iOS 9.
Emily Sweeney was thrown from her toboggan after getting sideways on the track. "It's pretty crushing", she said after the crash . Emily Sweeney's mum, Sue (centre), watches on in horror as her daughter crashes during her luge run.
U.S. ground commanders called in F-15 jets, MQ-9 Reaper drones, B-52 bombers, an AC-130 gunship and Apache helicopters. The attack's death toll is about five times more than Russia's official losses in Syria , according to Bloomberg .
Ramaphosa added that the ANC would also work to rebuild the confidence of the nation and credibility of state-owned institutions. It said the leaders, who have participated in discussions on Zuma's exit, dropped out because of "various other commitments".
South Africa wins toss, opts to bowl against India
They certainly do deserve that lofty status for the visitors were simply streets ahead of the Proteas in this series. Because the wicket was such and the ground was wet, we couldn't have won by just defending the runs.
RaceAhead: Why The Obama Portraits Matter
Obama's selection of Sherald, however, will have a major impact on her career right when she needs it. Meanwhile, Michelle Obama's portait by Amy Sherald showed her wearing a colorful Monday Milly gown.
Revenge? Puel is insouciant about Mahrez
The Algeria global failed to show up at the King Power Stadium after his move to the Etihad Stadium fell through. It's hard to resist against this team. 'I want to protect all the squad, it is the most important thing.
Winter Olympics: Teenager Red Gerard wins first USA medal
Norwegians Staale Sandbech and Markus Kleveland slipped up during their last shots, too, leaving only Parrot in Gerard's way. And he now can do what no other snowboarder has done since the discipline entered the Olympics: win two medals.