HARLEM, Manhattan (PIX11) — A 16-year-old girl was stabbed to death inside a Harlem apartment Sunday evening, prompting a police search for her boyfriend, authorities said.

Saniyah Lawrence was stabbed in the neck in an apartment on Adam Clayton Powell Jr. Boulevard near West 135th Street around 5:40 p.m., an NYPD spokesperson said. Lawrence, who lived in the neighborhood but not in the building where she was stabbed, was rushed to an area hospital but could not be saved.

Police said early Monday that they were searching for Lawrence’s boyfriend, 18-year-old Zyaire Crumbley, releasing a photo of him.

He’s described as about 5-foot-8 and 140 pounds with a medium build and short, black hair.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting crimestoppers.nypdonline.org, downloading the NYPD Crime Stoppers mobile app, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).