The Latest on a sit-in outside the office of Duke University President Richard Brodhead (all times local):

1:45 p.m.

A top Duke University official involved in a dispute with a parking attendant two years ago is apologizing to the woman.

In a statement posted Monday on the school website, Duke executive vice president Tallman Trask III says he apologizes to Shelvia Underwood and that he recognizes that his conduct "fell short of the civility and respectful conduct each member of this community owes to every other."

Students are in the fourth day of a sit-in outside the office of school President Richard Brodhead. They're seeking the dismissal of three administrators, including Trask.

Duke closed the building to the public on Monday.

A lawsuit filed last month by the contract traffic control officer accuses Trask of using a racial slur against her, which Trask denies. In his statement Monday, Trask says the details of what occurred are a matter of disagreement.

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9:37 a.m.

Duke University's president is trying to end a sit-in outside his office.

President Richard Brodhead met Sunday with demonstrators, who began their protest Friday inside the university's main administrative building. University spokesman Michael Schoenfeld says nine students have camped in a waiting area outside Brodhead's office.

Duke spokesman Keith Lawrence said Monday that the protesters remain in the building, which is closed to the public.

The protesters say they want three administrators dismissed, including one top executive involved in a dispute with a parking attendant two years ago.

A lawsuit filed last month by the contract traffic control officer accuses Duke executive vice president Tallman Trask III of using a racial slur against her.

Trask denies making any racial comment. He's said the attendant refused to let him park in his usual spot and stepped in front of his car.