Trump supporters camp before today's rally at Nassau Coliseum

BREAKING NEWS: Nassau County Police Chief Patrick Ryder says, “Reports of explosives found at the scene are unfounded. An individual who may have trained an explosive detection dog near the scene is being questioned. The individual with the explosive detection dog falsely reported that explosives were found and is currently in police custody.”

Supporters of former President Donald Trump stand in front of the Nassau Coliseum waiting for the rally planned for Wednesday evening.

Michael Kay arrived from Manhattan on Tuesday and waited in line for the event for nearly 24 hours.

“I'm a New Yorker, he's a New Yorker and this could be the last time we get a chance to experience an event with him, a rally. It's rare that he comes to New York, he usually visits the swing states, so this is kind of a historic moment before he has another opportunity to be president. I want to be a part of history,” Kay said.

Blakeman said the intelligence center will be fully staffed and every unit of the Nassau Police Department will be deployed.

Police Commissioner Patrick Ryder also said the parking lot would be swept on Tuesday evening and the day of the rally.

A line of cars formed outside the Coliseum gates on Hempstead Turnpike Wednesday morning, stretching to the Meadowbrook Parkway ramp before it opened at 8 a.m. A.m. Officials say people can park at Eisenhower Park or Mitchel Field and also walk to the Coliseum.

VIDEO: Safety update from Nassau County Sheriff Patrick Ryder.

According to official figures, 60,000 people have already registered for the rally, but The Only 16,000 people are allowed in.

The event is being hosted by the Trump campaign. Doors to the Coliseum open at 3 p.m. and the event begins at 7 p.m.

VIDEO: Michael Alcazar, retired NYPD detective and professor at John Jay College, on security at rallies

Police say the area around the Colosseum could be cordoned off at any time between 3pm Wednesday and the end of the rally, so it's best to avoid this area.

VIDEO: Senate candidate and Kamala Harris delegate Kim Keiserman talks about protests against Trump rally

Nassau police warned motorists and residents of heavier than usual traffic near the Nassau Veterans Memorial Coliseum between Hempstead Turnpike, Charles Lindbergh Boulevard, Earle Ovington Boulevard and Glen Curtiss Boulevard, and advised motorists to take alternate routes.

VIDEO: Mike LiPetri, candidate for New York's 3rd Congressional District, speaks at today's rally.

News 12 Long Island has also learned that classes at Hofstra University scheduled for Wednesday after 1 p.m. will be taught remotely. At Nassau Community College, classes will be canceled starting at 2 p.m.

In the Uniondale Union Free School District, classes will end earlier. High schools will begin at 11:45 a.m., middle schools at 12:25 p.m. and elementary schools at 1:05 p.m.

List of prohibited items:

• Aerosols

• Alcoholic beverages

• Balloons

• Balls

• Banners, signs, posters

• Drones and other unmanned aircraft systems

• E-cigarettes

• Explosives of any kind (including fireworks)

• Firearms

• Glass, thermal and metal containers

• Laser lights and laser pointers

• Mace and/or pepper spray

• Noise makers such as air horns, whistles, drums, megaphones, etc.

• Packages

• Spray container

• Structures

• Holders for signs/posters

• Weapons

• And any other items that, in the discretion of security personnel, may pose a threat to the safety of the event.