Federal agents are expected to move in on Terry Schrunk Plaza to close it off to homeless campers.
The feds gave the group a 10 p.m. deadline so they can perform routine maintenance on the park, and say they are prepared to arrest those who refuse to comply.
The plaza itself is on U.S. government property, which is why federal agents are involved.
The plaza with be fenced off for maintenance, which will include a landscaping renovation, according to federal agents.
The plaza has become the new spot for a homeless protest, which seeks to end the city's camping ban and also aims to find solutions for homelessness in Portland.
Mayor Charlie Hales evicted the group from the steps of City Hall last month.
Most protesters said they plan to leave Terry Schrunk Plaza peacefully and won't put up a fight with federal agents.
"Everyone is going to move together and stay as a group because it's safer," said Lorrie Carrassco, who lives on the streets.
Agents expect the park to be closed for the next week, possibly longer depending on how things go.
People from the homeless camp said they plan to move back in once the park re-opens.
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