PHILADELPHIA (CBS) — Philadelphia police say an elderly food vendor was stabbed to death while loading his cart with supplies early Thursday morning.

The stabbing happened at about 4:30 a.m. in the 400 block of Vollmer Street in South Philadelphia.

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According to investigators, 68-year-old Don Ly was loading his cart with food and supplies when he was approached by a man who stabbed the victim in the neck.

The victim was rushed to the Hospital of the University of Pennsylvania where he was pronounced dead.

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Investigators say the suspect ran away from the scene in what is believed to be a robbery attempt.

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So far, no arrests have been made. The deadly stabbing remains under investigation.