Nov. 4 (UPI) -- Bomb threats have shut down polling stations throughout New Jersey Tuesday, and officials have moved several to new election sites. Officials have said the threats, which were sent via email, were not credible . "Early this morning, law enforcement responded to threats that were received by email involving certain polling places in Bergen, Essex, Mercer, Middlesex, Monmouth, Ocean, and Passaic counties," the state Office of the Attorney General said in a statement Tuesday, NJ.