(JTA) — Signs critical of Israel posted by Students for Justice in Palestine on the Cornell campus were torn down several times.

SJP originally posted the signs on the school’s Arts Quad on the morning of Oct. 29, according to a report by Cornell’s student newspaper, the Daily Sun. Another student took down the signs later that morning, which led to a confrontation with SJP.

The student who removed the signs had been under the impression that the signs were not properly authorized by the university, the Daily Sun reported, though they were.

Reposted signs were removed or destroyed several times over the rest of the week until SJP gave up and took down the signs.