Crews search for person who went underwater in New Jersey lake

WILLIAMSTOWN, N.J. (CBS) — Crews are looking for a person they said went under the water in a lake in Gloucester County, New Jersey on Thursday afternoon. 
Gloucester County police dispatch said it happened near Jackson and Malaga roads in Williamstown, around 2 p.m. This is near Lake George and Cedar Lake. 
It’s unclear at this time what happened and how the person went underwater.
This is a developing story. Stay with CBS News Philadelphia for updates.