Raleigh, N.C. — Occupy Raleigh demonstrators say they aren't giving up six months after their movement began.

"As spring comes alive, so are we again," Occupy Raleigh organizer Jeremy Gilchrist said. "We aren't going anywhere, and as the American spring comes, we are going to get bigger."

Dozens of protesters joined a rally in downtown Raleigh Sunday afternoon as part of a national day of action called "Occupy the Highways and March on Our Nation's Statehouses." Participants marched from Fletcher Park, down Glenwood Avenue to the state Legislature Building.

Protesters said they wanted to spread their message to end corporate greed and government injustice.

"We have a key goal of ending corporate influence in politics," Gilchrist said.

Occupy Raleigh protesters also planned to hold a candlelit vigil at the Old State Capitol Building Sunday night to honor Trayvon Martin, an unarmed teenager shot and killed by a neighborhood watch captain in Sanford, Fla.

The decision by local police to not charge the watch captain, George Zimmerman, sparked national outcry and investigations by a local grand jury and the U.S. Justice Department.