MAKASSAR, Indonesia (AP) - Protesters and police hurled rocks at each other Tuesday during a demonstration against fuel price increases announced by Indonesia's government.

At least four people were injured, police and witnesses said.

The clash occurred when officers tried to keep the protesters - who were mostly students - from burning tires and seizing a fuel tank truck in the town of Makassar on Sulawesi island, witnesses said.

Police arrested seven people, said police Col. Genot Haryanto.

"They will be questioned and the case will proceed to court no matter whether the students or police are to blame" for provoking the clash, he said.

The government announced Monday that it will cut subsidies in the coming weeks on a range of fuel products to avoid a massive budget deficit amid soaring world oil prices.

A big fuel price increase in 1998 triggered rioting that helped topple former dictator Suharto. Protests also forced former President Megawati Sukarnoputri to scale back a fuel price increase in 2002.