The Robbinsdale Area Schools board will restart its search for a superintendent after a fractured board could not agree on which candidates should get a second interview.

"After lengthy deliberations and utilizing a rubric to evaluate the candidates, the data did not produce a majority agreement to move forward for the second round of interviews," the board said Sunday in a statement after interviewing six candidates on Saturday.

Superintendent David Engstrom was on medical leave when he left last September after an agreement with the district, school officials said at the time. Assistant Superintendent Marti Vogt has led the district since.

The school board was scheduled to announce a new superintendent next week but instead will seek more candidates for the job.

The district serves 11,500 students in Robbinsdale, Crystal, Golden Valley, New Hope, Brooklyn Park, Brooklyn Center and Ply­mouth.