SP/Novianti Setuningsih – Corruption Eradication Commission (KPK) investigators' probe into graft allegations levied against disgraced Democratic Party chair Anas Urbaningrum has only scratched the surface with the Hambalang sports center case, Indonesia's antigraft chief said.

"There are many more," KPK chief Abraham Samad said. "But we can't say in detail yet, because we're still investigating these [allegations]."

The KPK confirmed rumors that Anas may have been involved in several other corruption scandals linked to the Democratic Party, including a graft-plagued solar power plant project and the Ministry of Education and Culture's contract to purchase laboratory equipment for schools.

Both projects allegedly involved the politically connected companies Anugrah Group and Permai Group, two businesses with reported ties to Anas and graft convict Muhammad Nazaruddin. The companies were successful in securing numerous government contracts, many of which were later alleged to be rife with kickbacks and inflated budgets.

The Hambalang case alone reportedly cost the state some Rp 243 billion ($24.3 million) in losses.

Both cases have already resulted in prison terms for Nazaruddin's wife Neneng Sri Wahyuni and former Democratic Party deputy secretary-general Angelina Sondakh.

Anas has been named a suspect for reportedly receiving a Rp 100 billion kickback on the Hambalang construction contract. He allegedly used the funds to buy the votes of Democratic Party members in his 2010 bid for party chairman.

He resigned from the scandal-plagued party after being charged by the KPK. The antigraft agency has recently said that Anas will be placed behind bars in a KPK detention center following Idul Fitri.