Police are asking for the public's help to find a suspect they say robbed a man at knifepoint in Manhattan.
They released the above photos of the suspect, who they say attacked a man in Harlem last month.
Police say he approached a man who was entering his apartment building and demanded valuables.
The victim fought with the suspect, who police say robbed and injured him before running away.
Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.