A mass shooting of nine people in West Philadelphia early Sunday morning has resulted in three deaths, police confirmed.

The shooting, possibly at a block party with more than 100 people, happened just after 2 a.m. in the 1200 block of North Alden Street. 

Some of the shooting victims were taken by police to the hospital, while others were driven away by neighbors.

"Preliminary information indicates an exchange of gunfire between multiple parties resulting in a nonuple shooting and triple homicide," the Philadelphia Police Department said in a statement to Fox News Digital. 

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A mass shooting of nine people was reported in the 1200 block of North Alden Street in west Philadelphia. (WTXF)

Those killed were a 23-year-old man, a 29-year-old man and a 33-year-old man, according to a police-provided victims list. Their identities have not been released. 

Conditions of the injured range from stable to serious, their ages are mid to late 20s and one 30-year-old. Their identities have also not been released. 

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Crime scene unit investigators with Philadelphia Police Department at the scene of a mass shooting early Sunday, July 21, 2024.  (WTXF)

Several shell casings of multiple calibers and one weapon were found at the scene, police said. 

Whoever is responsible for the shooting is still on the loose. It is possible there was more than one gunman, police told FOX 29. 

Philadelphia police on the scene of a mass shooting in the 200 block of North Alden Street in West Philadelphia.  (WTXF)

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Images from the scene show the shooting happened on a residential street.

Philadelphia police ask anyone with information to call PPD’s anonymous tip line (call or text) at 215-686-TIPS (8477). 

This is a developing story. Check back here for updates.