Undated (AP) _ Black student leaders at Stanford University called the destruction of a small campus shantytown ''a racist act'' and vowed Monday to rebuild the symbol of solidarity with the anti-apartheid movement in South Africa.

Campus police said they were investigating the apparent vandalism, but had no leads.

''It looks like somebody just pushed it over,'' said police Capt. Raoul Neimeyer. ''It was pretty flimsy. We didn't see any graffiti or painting or anything. Typically, we have a lot of vandalism over the weekend, bikes run over, windows broken, things like that. We don't know if this was politically motivated.''

Meanwhile, an agreement to remove a shantytown from the Dartmouth College green in Hanover, N.H., faltered Monday.

The administration and two student groups tentatively agreed Sunday to dismantle the five shacks, with one to remain for a time in front of the administration building.

But the town said Monday that it would not issue a permit for the shanty at the administration building, said George Bourozikas, a leader of the Dartmouth Community for Divestment.

''The town has expressed deep dissatisfaction with the continued presence of the shanties,'' said Alex Huppe, a spokesman for the Ivy League school.

Student protesters erected the first shanty in November as part of their fight to get Dartmouth to sell off about $63 million in investments in companies doing business in South Africa. The college trustees have refused.

In Stanford, the three cardboard, wood and plastic shacks, erected by a student group called Stanford Out of South Africa, were seen standing late Saturday by a campus security officer, but were flattened when the officer passed by three hours later, Neimeyer said.

University President Donald Kennedy, alerted to the destruction by SOSA members, asked campus police to investigate Sunday. ''We need to try to find out what was done, by whom and for what reason,'' he said through a spokesman.

Black Student Union president Steve Phillips called the act ''racist'' and ''a disgrace,'' adding that it showed ''a total disregard for those people struggling to aid the people of South Africa.''

A similar incident occurred last month at Dartmouth, causing the school to shut down classes for a day and run a campus-wide meeting on racism.

Twelve Dartmouth students attacked that shantytown with sledgehammers the day after Martin Luther King Jr.'s birthday and were caught in the act by police. Ten of the students were members of a conservative campus publication.

Phillips said he thought the Dartmouth incident may have inspired the destruction of the Stanford shantytown.

The shacks at Stanford were built last month before the visit of South African Bishop Desmond Tutu to remind students of the oppressive living conditions blacks cope with in South Africa, said Amanda Kemp, member of the Black Student Union and SOSA.