The FDNY and NYPD united Sunday for a ceremony honoring Bronx EMT Yadiro Arroyo, who was killed in the line of duty two years ago.

Prosecutors says the 44-year-old was killed by a man who hijacked her ambulance and ran her over while high on PCP.

The Bronx mother has been memorialized through an FDNY alarm box, which the community can use to activate the 911 system if someone is in trouble.

The box, complete with a picture of Arroyo, was unveiled at the corner of Watson Avenue and White Plains Road, where Arroyo was killed in March 2017.

News 12 spoke with her uncle, who says he's grateful for the memorial but remains heartbroken over Arroyo's loss. She left behind five children.

Arroyo's suspected killer, Jose Gonzalez, was recently found fit to stand trial after much debate over whether he was mentally fit to do so. The next court date is set for April 4.