PHILADELPHIA (CBS) — Two teenagers were among three people shot when gunfire erupted overnight in North Philadelphia.

It happened around 4 a.m. Saturday at 31st and Berks Streets in the Strawberry Mansion section of the city.

READ MORE: Missing 6-Year-Old Found Safe, Stolen Vehicle Found In Checkers Parking Lot, Police Say

Police say a 15-year-old, 17-year-old and a 25-year-old were standing on the street corner when someone opened fire, striking them.

READ MORE: 23-Year-Old Dies After Tuesday Night Shooting In Kensington, Police Say

All three were taken to Temple University Hospital in unknown condition.

MORE NEWS: WATCH LIVE: Philadelphia Officials To Provide Update To Anti-Violence Efforts Underway Citywide

There was no word on what sparked the shooting.