WASHINGTON (AP) — Democratic presidential candidate Bernie Sanders says his campaign accepts primary results in Kentucky, handing front-runner Hillary Clinton another victory.

A review of election results Thursday yielded no change in the outcome of Kentucky's May 17 primary.

Both candidates earned 27 delegates. But one delegate in the 6th Congressional District has not been awarded yet. Clinton leads Sanders by about 500 votes in that district.

"We are very pleased that we split," Sanders said in a statement Thursday.

Sanders sent a letter requesting a recanvassing of the results on Tuesday. He could have asked a judge to order a recount, but he would have to pay for it himself.

Clinton leads Sanders by a margin of 271 pledged delegates. But Sanders has vowed to stay in the race.