The Roosevelt Union Free School District school board voted 4-0 on Tuesday night to fire two certified staff.
The staff members were not named at the meeting, but school district officials told NBC News previously that the question of terminating two nontenured teachers at Roosevelt Middle School, who were allegedly involved in the noose incident, would be considered at the March 19 meeting.
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The teachers had been employed by the district for two to three years.
A third teacher, who is tenured, was suspended with pay on Tuesday pending a hearing for her alleged involvement in the display, the school board president told NBC News. She was previously on administrative leave.
The noose images were part of a larger collage that was in one of the classrooms at the middle school, which has a student body that is almost entirely black and Hispanic. The collage showed two nooses and also featured the words "ha" and "#yes."
It is unclear who made the collage or how long it was displayed in the classroom.
The image was widely criticized. Hempstead Town Supervisor Laura Gillen and Arthur Mackey Jr., chaplain of the Roosevelt Chamber of Commerce, both called for the firing of the teachers responsible for its display.
Prior to the vote Tuesday, Mackey told school board members that the noose incident shows the need for "a strong emphasis on black history [to] be revived in the schools."
Janelle Griffith is a breaking news reporter for NBC News.