An on-duty New York City police officer was killed on Wednesday after a man walked up to her police vehicle and began to fire shots through the window, authorities said.
Police are calling the shooting a "clear assassination."
Officer Miosotis Familia, a 12-year veteran assigned to the New York Police Department's 46th Precinct's Anti-Crime unit, was taken to a Bronx area hospital where she later died, according to the NYPD. She was 48-years-old.
The department said the officer was struck in the head in an "unprovoked attack" while sitting in a marked police command van – which had been parked in the area since March because of increased gang activity.
The NYPD said the suspect was shot and killed by responding officers and that there were "no outstanding suspects."
An innocent bystander was also shot and hospitalized with non-life threatening injuries, according to the police department. The officer's partner, who was also in the vehicle, was not injured in the attack, the department said.
The suspect, identified as 34-year-old Alexander Bonds of New York City, pulled a gun on the responding officers and led them on a block-long foot chase before he was killed, police said, noting that a silver revolver was recovered at the scene.
Police are unaware of any connection between Bonds and Familia.
Mayor Bill de Blasio visited the hospital where Officer Familia was taken.
"She was on duty, serving this city, protecting people, doing what she believed in and doing the job she loved," said Mayor de Blasio. "And after this shocking and sudden attack, fellow officers came to her aid immediately."
He noted that the area where the shooting took place had been troubled by gun activity.
Patrick Lynch, president of the NYC Patrolmen’s Benevolent Association, said people in the area should be on the look out for anti-police activity.
“This kind of violence against police officers can not stand. We need the public’s help,” Lynch said while speaking at Wednesday's press conference. When you someone that’s making threats [or] doing something against police officers, you need to let us know. You need to be our eyes and ears."
ABC News' Matt Foster and the Associated Press contributed to this report.