MPR says Hennepin County is putting new rules into effect Monday to prohibit protesters from sleeping on the plaza in downtown Minneapolis, taping signs to county property or leaving personal items unattended.

The American Civil Liberties Union is accusing Hennepin County officials of issuing a rash of trespass notices to force OccupyMN protesters off Government Plaza. The county denies that claim and says it has only handed out trespass notices to some individuals because of misconduct.

Dozens of activists have occupied the Hennepin County Government Plaza since last month. But last week, new rules went into effect that prohibited protesters from posting signs or sleeping on country grounds.

A ban on camping on the county property went into effect this week, but law enforcement authorities haven't started enforcing the new law. Several dozen activists remain at government plaza.

The demonstration is expected to be similar to the Occupy Wall Street protest in New York -- which calls for the end of corporate greed. Organizers of the protest say they're planning for a long-term occupation of Government Plaza in front of the Hennepin County Government Center.

The protesters filed a lawsuit against the county earlier this week -- saying rules against tents or posting signs are unconstitutional. The county argues its restrictions are reasonable, saying no group has a First Amendment right to use the plaza as a private campground.

Minneapolis protesters set up tents outside the Hennepin County Government Center Saturday night despite a ban from city officials earlier in the week. Hennepin County does not allow tents on government center property.

Authorities confiscated more than two dozen tents that were set up outside the Hennepin County Government Center plaza early Sunday. Demonstrators plan to erect more tents across the street from Government Plaza in U.S. Bank Plaza.