By BRUCE SHIPKOWSKI A large number of mysterious drones have been reported flying over parts of New Jersey in recent weeks, sparking speculation and concern over who sent them and why. New Jersey Gov. Phil Murphy and law enforcement officials have stressed that the drones don’t appear to be a threat to public safety, but many state and municipal lawmakers have nonetheless called for stricter rules about who can fly the unmanned aircraft. The FBI is among several agencies investigating, and it has asked residents to share videos, photos and other information they may have about the drones. What has been seen in New Jersey? Dozens of witnesses have reported seeing drones in New Jersey starting in November. At first, the drones were spotted flying along the scenic Raritan River, a waterway that feeds the Round Valley Reservoir, the state’s largest aquifer, about 50 miles (80 kilometers) west of New York City. But soon sightings were reported statewide, including near the Picatinny Arsenal, a U.S.