UPDATE, Jan. 12 at 2:50 p.m.: Gloucester Township Police announced at 2:30 p.m. that the source of the odor is a diesel-fuel spill at the New Jersey Transit bus depot in Washington Township.

Police reiterated their earlier message that Camden County health officials do not believe the spill, or the resulting odor, pose a threat to the public.

A private environmental cleanup company is on the scene working to mitigate the spill, police said.

New Jersey Transit is the lead agency handling the spill.

Read Gloucester Township Patch's full coverage of the fuel spill at our special topic page on the incident.

----------

Local, county and state officials are investigating the source of an unusual odor in the area of Grenloch Lake.

The strange odor was reported to township officials at around 7:40 a.m. Thursday.

At about 12:15 p.m., Gloucester Township Police, in a recorded telephone message delivered to the local police department's Global Connect followers, said they have been informed by Camden County health officials that "there is no danger to public safety."

It is believed the source of the fuel or diesel-fuel odor is somewhere in Gloucester County, police said.

The odor is most noticeable in the area between Lakeland Road and Sicklerville Road near the Black Horse Pike and Route 42.

Firefighters noticed an "oily sheen" on Grenloch Lake Thursday morning, according to reports.

Sign up for the Gloucester Township Police Department's Global Connect here.