A man and a woman were stabbed in separate and unprovoked attacks in Hell’s Kitchen in Manhattan Wednesday night that were carried out by the same suspect, police said.

The first victim, a 28-year-old man, was knifed once in the back on West 50th Street around 7:21 p.m., according to authorities.

About 30 minutes later, the second victim, a 27-year-old woman, was stabbed once in the chest on West 47th Street, cops said.

The random attacks were committed by a male suspect believed to be in his 40s, police sources said. A person of interest was taken into custody, but no charges were immediately reported by police.

The victims were taken to Roosevelt Hospital by private means and are expected to live, the NYPD said.