SP/Novianti Setuningsih – The Corruption Eradication Commission admitted on Thursday that it was struggling to name suspects in its investigation into the Rp 1.52 trillion ($164 million) construction of the Hambalang sports center in Bogor.

"We are having a hard time finding substantial evidence because the procurement process [for the project] occurred a year or two years ago," said Johan Budi, a spokesman for the antigraft body known as the KPK.

Johan said the Hambalang investigation was different from a similar corruption case linked to the construction of the athletes' village for last year's Southeast Asian Games, which took place in Palembang.

The SEA Games scandal, the spokesman said, was easier to investigate because three of the main suspects were caught channeling more than Rp 3 billion in bribes.

On Thursday, Youth and Sports Minister Andi Mallarangeng honored a summons from the KPK to be questioned regarding the construction of the sports stadium in Hambalang.

The Hambalang case was among the many accusations of graft leveled by high-profile corruption convict Mohammad Nazaruddin, the former Democratic Party treasurer, during his lengthy trial. Nazaruddin alleged that some money from the Hambalang project had gone into Andi's pocket. The minister has repeatedly denied the allegations.

The KPK has already questioned several people, including Ignatius Mulyono, a Democratic legislator, and Joyo Winoto, the head of the National Land Agency (BPN).