Motorists "rubber-necking" during the search for a naked man in bushland near Darwin's CBD has been cited as a factor in four crashes during peak hour this morning.

The Northern Territory police dog squad was called out to Tiger Brennan Drive last night after reports of a young, blond naked man who was dancing, singing and throwing rocks at cars.

Superintendent Bob Rennie from Traffic Operations Division says that after the search resumed this morning, there was a two-car crash, followed by an accident involving six vehicles.

"A little bit of rubber-necking there," Superintendent Rennie said.

A police car on its way to help in the six-car crash then hit an inbound car.

Finally, on the Stuart Highway, where traffic had been diverted, there was a three-car nose-to-tail crash.

Police say it is lucky no-one was seriously injured.

They have been unable to track down the naked man.

"As you know the police are out there; we're still conducting that search for that naked chap," Superintendent Rennie said.