The filing period to run in North Charleston's municipal elections has more than a week to go, but some interesting races are starting to shape up.

As expected, Mayor Keith Summey faces a challenge from Charleston County School Board member Chris Collins on Nov. 8. Both men have filed the necessary documents and $1,000 filing fee.

But one of the more high-profile showdowns could be over the District 4 seat in the northern part of the city, where Vernon Pryor -- whose two brothers already hold ranking jobs in City Hall -- faces Ron Brinson, a newspaper columnist who writes on port-related matters.

Pryor works at the local Department of Defense electronics operation known as SPAWAR. He is a brother of North Charleston's tourism director and current Charleston County Council Chairman Teddie Pryor. His other brother, Spencer Pryor, is the city's police spokesman.

Brinson is an occasional editorial columnist with The Post and Courier, and a former president/CEO at the Port of New Orleans. His commentaries have been put on hiatus by the newspaper during the course of the campaign.

The seat covers the Coosaw Creek neighborhood, Paddock Point, Saddlebrook and south of Wescott Boulevard.

Among other races:

In District 1, which covers Forest Hills, River Bend, Hunley Park and Summerfield, incumbent Ed Astle faces a challenge from defense contractor Gregory Deese.

In District 3, which includes Northwoods, Deer Park, the Elms, Charleston Southern University and Otranto Club Villas, incumbent Bobby Jameson faces a challenge from Russell Coletti, an operations manager at FedEx.

In District 6, which includes Charleston Air Force Base, Liberty Park, Hunters Ridge Waylyn and Brentwood, Michael Dockery, an admissions representative with Miller- Motte Technical College, has filed for the seat currently held by Dorothy Williams. She is expected to run again.

In District 8, which covers the area around Park Circle, including Olde North Charleston, Oak Park and Palmetto Gardens, Russ Patterson, an environmental compliance and restoration manager, has filed to challenge incumbent Bob King.

In the new District 9 seat, newcomer Kenny Skipper, a trucking company agent who oversees shipping containers, and Boeing manufacturing engineer Dwight Stigler, are battling for a seat that includes Indigo Fields, White Hall, Watson Hill, Cedar Grove and north of Wescott Boulevard.

In the District 10 seat covering the southern end of the city, incumbent Michael Brown is being challenged by church elder James Johnson III. The district includes Chicora Cherokee, Union Heights and Accabee, among other neighborhoods.

Three City Council incumbents so far are not facing any announced challenger. They include:

Steve Ayer, whose District 5 seat covers North Pointe, Evanston, Wando Woods and Ashley Villas.

Sam Hart, whose District 7 includes Liberty Hill, Whipper Barony, Ferndale and Oak Grove.

Rhonda Jerome, whose District 2 includes Pepperhill, Colony North, Midland Park Terrace and Windsor Hill.

Two incumbents are not seeking re-election this year. Phoebe Miller is retiring, and Kurt Taylor is leaving to become Charleston County administrator.

Filing for all the offices closes at noon Sept. 2.