A Brooklyn gunman blasted two innocent bystanders who were working at a construction site — killing one of them — in a daylight shooting in Coney Island on Monday, police said.

Prior to the melee, the shooter was driving an SUV at about 11:45 a.m. when he pulled over on West 33rd Street between Neptune and Bayview avenues and got into an argument with another man, cops said.

He opened fire at the man, but missed him and hit both hardhats — a man and a woman, police said.

The woman, 53-year-old Dorothy Dixon, was shot in the chest and was rushed to Coney Island Hospital, where she was pronounced dead. The man, 47, was taken to Lutheran in stable condition.

“They were working on a construction project at NYCHA, Gravesend Houses,” explained state Assemblywoman Mathylde Frontus (D-Brooklyn) in a Facebook post. “I am not sure if the workers were also local residents but either way all Americans should be appalled by the idea of workplace violence.”

Police initially believed Dixon and the other worker were targeted in the shooting, but discovered they were innocent bystanders during their investigation on Monday.

Community leaders are looking to organize “an urgent” response to the shooting as police continue to investigate.

“This violence must end,” wrote city Councilman Mark Treyger (D-Coney Island, Bensonhurst) on Facebook. “I’m working with Assembly Member Mathylde Frontus, Senator Diane Savino, Operation H.O.O.D., and community leaders to organize an urgent shooting response. I’ve contacted the school superintendent to ensure schools nearby are safe. I will remain in touch with NYPD and community leaders to ensure the safety of residents. More details to come soon.”