Philadelphia police say they are investigating a triple stabbing after a fight between two gangs in the city's Lawncrest section.

It happened around 2 p.m. Monday on the 6700 block of Rising Sun Avenue at Castello's Pizza.

According to police, a 15-year-old, 18-year-old and 17-year-old were stabbed during the fight. Investigators say the three victims walked out of the pizza shop and flagged down a passerby down the block and informed the driver they had been stabbed.

The driver then drove all three victims to Jeanes Hospital where they are listed in stable condition.

No arrests or weapons have been recovered at this time.

This is a developing story, please stay with FOX 29 for updates.