Suharto

JAKARTA, Indonesia (CNN) - A line of troops in riot gear prevented a group of about 1,000 student marchers from nearing the presidential palace Tuesday.

Small groups of students took to the streets of Jakarta, demanding faster democratic reform and a thorough investigation of ousted President Suharto's wealth.

The protests were peaceful, in contrast to civil unrest this month that has killed about 30 people.

The students marched along the capital's main road towards the palace, then dispersed after reaching the troops.

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A separate group of about 600 students demonstrated outside Attorney-General Andi Muhammad Ghalib's office in the city's south, demanding a tough probe into Suharto's wealth.

Some entered the building, but there was no trouble.

Some newspapers estimate Suharto and his family amassed up to $40 billion during his 32-year autocratic rule.

Suharto's hand-picked successor, B.J. Habibie, has announced an independent probe into the former leader's wealth, but students question its credibility.

Reuters contributed to this report.