PORTLAND — The city has given Occupy Maine protestors until 12:30 p.m. Thursday to make their next move.

City Manager Mark Rees sent a three-page letter to John Branson, the group’s attorney, saying Occupy Maine has three choices: Disband the encampment, try the judicial system or seek a new permit that meets city codes.

“We will not take any action to remove any structures or any of the members of Occupy Maine in the interim,” Rees said of the deadline, “and we will provide you and your clients at least 48 hours prior written notice of any such action.”

The group plans to hold a meeting Sunday to discuss its options.

Earlier this week, City Council denied Occupy Maine a permit that would have allowed it to remain camped in Lincoln Park through the winter.

The council said the encampment violates city laws about camping in Lincoln Park between 10 p.m. and 6:30 a.m., and safety and health questions have also arisen.