The man found stabbed last week on a ramp of the Southern State Parkway in North Valley Stream has died from his injuries, State Police said Tuesday.

Sumeet Singh, 21, of Franklin Square, died Thursday at Winthrop-University Hospital in Mineola, the day after he was found with multiple stab wounds by Exit 15S, Corona Avenue, which leads to the westbound parkway, police said.

Upgraded charges are expected against Camari Hurley, 23, also of Franklin Square, who was arrested minutes after Singh was found and has been held without bail on initial charges of second-degree attempted murder and first-degree assault, according to state police and online court records.

The two men knew each other, police said.

“We have several witnesses who have exposed some conflicts within the relationship,” said Lt. Jose Febo of the bureau of criminal investigations for state police on Long Island. “We are still investigating.”

Hurley stabbed Singh in the head and back several times, leaving him in the middle of the road to die, according to the court complaint. Hurley’s attorney, David W. Haber of Mineola, declined to comment, saying he had not gotten details from his client.

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Investigators are trying to determine what happened and gather more evidence, including any video footage and information on the activities of the victim and the suspect, police said. “We want to know every single footstep they took,” said Lt. Jose Febo of the bureau of criminal investigations for state police on Long Island.

Police ask anyone with information to call them at 631-756-3300.