About 100 university students have dumped cow manure outside a Jakarta hotel where delegates to Indonesia's top constitutional assembly are staying.

Some 100 police personnel erected barbed wire barricades outside the hotel housing delegates to the current annual meeting of the People's Consultative Assembly, but no clashes were reported.

The students chanted anti-government slogans and dumped plastic bags filled with manure in front of the barricade before watering it.

They criticised reports given to the assembly by president Megawati Sukarnoputri, the parliament speaker, the supreme court chief and other top officials. They say the reports failed to address crucial reform issues which could improve the lives of the poor.

The meeting – which is due to consider major constitutional changes including direct presidential elections – opened yesterday and ends on August 10.