A New York City police officer is heard frantically shouting for help after his partner was fatally shot early Wednesday.

Officer Miosotis Familia was writing in her memo book at the end of her shift when 34-year-old Alexander Bonds walked up to the passenger side of the police truck she was sitting in and fired one shot, striking her in the head.

“Shots fired! 10-85!” her partner is heard shouting after the gunfire on a police recording, including the code for an officer down. “My partner’s shot! My partner’s shot! My partner’s shot! Hurry up central!”

Police quickly responded and caught up to Bonds about a block away, where he pointed a gun at them. They fired and killed him.

Police Commissioner James O’Neill said it was an unprovoked attack.