11 people are dead, and several others have been hospitalized following a Saturday morning shooting at a Pittsburgh synagogue. 

Forty-six-year-old Robert Bowers allegedly opened fire at the Tree of Life Synagogue during a baby naming ceremony, according to The Associated Press, before a shootout with police. There were as many as 100 people inside the place of worship during the attack.

Bowers was apprehended and taken to a local hospital, where he was listed in fair condition with multiple gunshot wounds during a press conference by Pittsburgh Public Safety Director Wendell Hissrich, reports ABC News. The four wounded officers are being treated in a nearby medical center.

CBS Pittsburgh reports the gunman yelled "All Jews Must Die" before opening fire on the worshippers on the third floor. 

Reports state the Pittsburgh resident ranted about the Hebrew Immigrant Aid Society an hour before he attacked with an AR-15 rifle. “HIAS likes to bring invaders in that kill our people," he wrote on Twitter. "I can’t sit by and watch my people get slaughtered. Screw your optics. I’m going in.”  

Bowers had a history of anti-Semitic remarks. He reportedly wrote “Jews are the children of Satan“ in one of many rants on the alt-right site Gab. 

When authorities arrived on the scene, Bowers opened fire on them, too. Somehow, though, he was brought in alive.

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