TINICUM TOWNSHIP, Pa. (CBS) — Authorities say two adults and three kids were aboard a school bus that crashed in Delaware County on Wednesday afternoon.

The accident occurred at 2:30 p.m. on the Route 420 ramp to I-95 southbound in Tinicum Township. Police say the school bus crashed down a ditch.

FULL TRAFFIC COVERAGE

There is no report on the extent of injuries.

There is also no word yet on what caused the driver to lose control, police say.