Children are back in school and voters back at the polls after an apparent hazardous materials scare at a South Jersey school.

Slideshow: Images From Chopper 10 From The Scene
Article: City Denies 'Drudge Report' Story On Voting Irregularities

The polling place in Mount Laurel closed for about two hours Tuesday morning when a substance that later turned out to be salt was found on the floor.

Township police shut down voting at the Fleetwood School at about 9 a.m. after the salt was spotted on the floor and reported as a suspicious substance, Officer Frank Plunkett said.

Voting resumed at about 11 a.m. after tests determined the white powder was salt, Plunkett said.

A witness at the scene said a person apparently entered the building, threw a white substance into the air and fled.

A hazardous material truck, several fire trucks and police cars were on the scene, and groups of children could be seen in the school's parking lot from aerial views from Chopper 10.

No injuries were reported at the scene.

In Newark, more than 200 people sought court orders before noon because they were turned away from a polling place for one reason or another, said Frank Askin, a professor at Rutgers Constitutional Law Clinic.

Most were people who showed up at the polls and found their names were not on the voter registration lists. They went to the law clinic, where five Superior Court judges were hearing cases and, in 95 percent of them, allowing people to cast ballots, Askin said.

There has been no evidence of wrongdoing or deliberate attempts to disenfranchise voters thus far, he added.

There was also a report of a voting machine problem in Princeton.

Bettye Monroe, deputy superintendent of elections for Mercer County, said a Princeton polling place had to go without one of its four voting machines for just over two hours. Poll workers at Littlebrook School eventually got the machine set up about 9:30 a.m.