SEATTLE -- The city of Seattle is making initial moves to clear out a fresh homeless camp shortly after it was erected.

Several large groups of homeless people picked up their belongings and moved early Monday morning into 150 tents set up at the camp in an industrial area of south Seattle.

Volunteers and homeless from four Seattle locations, including two tent cities, moved in the darkness to the new location that they hoped would be permanent, but by late afternoon the camp caught the eye of city officials who brought in signs ordering the campers to leave in 72 hours.

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Homeless people that KIRO 7 Eyewitness News reporter Michelle Millman spoke with told her they have named the new encampment "Nickelsville" in response to Seattle Mayor Greg Nickels' policies on the homeless.

Nickels reiterated his policy after the camp went up.

“These are not healthy places. These are not safe places for people to be. It’s just wrong in a city in the richest country, America, for people to be living in encampments in our greenbelts and our parks," Nickels said.

The mayor said he wants to help those who need shelter to find it.

“We are committed to ending homelessness,” Nickels said.

Homeless advocates said there aren’t enough options.

"It’s objectively clear to anyone who wants to investigate it that we have more people who need shelter than we have shelter to put them in,” said Alison Eisinger of Coalition on Homelessness.

Nickels said the people at the encampment will be offered counseling and shelter.

Organizers of the camp said they'll defy the order to leave by Thursday and that they don't believe officials who said the city is spending $40 million a year in housing aid.

In May, police ousted homeless from a camp in Queen Anne under an order from Nickels, which sparked a protest the following month by homeless advocates who said they were against police sweeps of such camps.

At the new camp, pink tents that were donated by the Girl Scouts were set up but will be replaced with permanent structures.

Homeless advocates said they hope the site will provide shelter for up to 1,000 people and that once more people move in they'll be able to stay there permanently.

The camp is on Seattle's Department of Transportation land.