OKLAHOMA CITY (AP) — Gov. Mary Fallin says the special election to fill U.S. Sen. Tom Coburn's seat in the Senate will be held on the same dates as Oklahoma's primary and general elections in 2014.

Fallin said Friday the election dates will include a June 24 primary, a potential runoff election on Aug. 26, and a general election on Nov. 4.

Coburn already had said he wouldn't run after his term expired in 2016, but announced late Thursday that he planned to finish the current year in office and then step down.

The timing of the election is significant because any statewide elected officeholder or member of the U.S. House who runs for the seat will have to vacate their current post to become a candidate.