The officer, NYPD ESU Detective Matthew Gale, was taken to Kings County Hospital after suffering a tibial fracture of the left leg. He is being treated and is expected to recover.
The 48-year-old suspect, identified as Lamin Simmons, was also shot. He was rushed to Woodhull Hospital where he was pronounced dead.
The suspect had been barricaded in an two-story brownstone apartment building on Kosciuszko Street since before 6 a.m. on Friday.
Police responded to the scene after neighbors called 911, reporting at least seven gunshots fired around 5:45 a.m.
Patrol officers entered the apartment, then retreated after encountering a man with a gun, and requested additional resources.
NYPD officials say that the wife and son of the suspect was able to escape the apartment, but an elderly couple on the floor above could not escape.
A hostage team responded, got in touch with the elderly couple and told them to lock their door.
The hostage attempted to establish a dialogue with the suspect, who began to throw large objects out a rear window into the backyard, including a microwave, lamp, pots, pans and other kitchen items.
NYPD officials say a drone was able to confirm that the suspect was holding a gun, and continued to fire his weapon.
Officers eventually entered the apartment building, where they found the suspect at the top of the stairs on the same floor as the elderly couple.
Officials say that after refusing to drop his gun, he shot Det. Gale in the leg.
Officers then returned fire, striking Simmons, who was later pronounced dead at the hospital.
Police say Simmons fired about 20 rounds. They recovered two weapons, including a baretta handgun, and a 380 caliber handgun.
During an NYPD update, Police Commissioner Jessica Tisch said she met with the injured officer, and said Det. Gale is in good spirits, and is in stable condition.
Officials say they believe the whole situation stemmed from a dispute between Simmons and the elderly couple. They say Simmons has a history of mental illness.
One neighbor spoke to Eyewitness News about the suspect who was killed.
"That was my neighbor. I watched him raise his sons, he has twin boys. The twins are about 17, 18, you know in that age group, but they're young men. But he was dedicated to those children, he was dedicated to those two boys. I don't know what could've transpired that could've led up to this," the neighbor said.
Simmons apparently had prior interaction with police, but his record is mostly sealed.
----------
* More Brooklyn news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube