After a mass hacking attack on more than 120 Malaysian Web sites, dozens of students ambushed the Malaysian Embassy in Jakarta on Tuesday and pelted it with rotten eggs.
The rally outside the embassy at Jalan Rasuna Said, South Jakarta, was heavily guarded by police, but no demonstrators were stopped or arrested.
However, police intervened when a student tried to climb the embassy gate to erect an Indonesian flag. The police and the student were involved in a tug-of-war trying to get hold of the flag, but police finally relented and the student flew the flag from the embassy gate.
A demonstrator told Metro TV that the rally was a symbolic act to demand that the Indonesian government break diplomatic ties with Malaysia and evict the Malaysian Ambassador from Indonesia.
The already heated relationship between the neighboring countries reached a new tensions last week after an allegation that Malaysian's national anthem, Negaraku, was a copy from an Indonesian song titled Terang Bulan.
Allegations that a Balinese dance had been used to promote a television show about Malaysia also irked Indonesians, though it was revealed soon afterward that no Malaysian government agency had a role in making the advertisement.
The two countries have been embroiled in a string of spats over alleged misappropriation of cultural icons, reports of migrant worker abuse and territorial disputes.