POTOMAC, Md. (AP) -- Investigators in Montgomery County are asking for the public's help to learn more about a necklace found at the scene of an explosion in Potomac.

Authorities say they found a necklace with Hebrew letters that spell "Jennifer" at the scene of the explosion, which happened outside a home in the 9200-block of Inglewood Drive about 9:15 p.m. on Wednesday. The necklace may be related to the crime, and anyone with information about it is being asked to call the Montgomery County Fire and Explosives Tip Line at 240-777-2263.

No one was at home at the time of the blast.

(Copyright 2011 by The Associated Press. All Rights Reserved.)