More than one hundred of Indonesians rallied on Friday outside the country's anti- corruption watchdog (KPK) to voice their support for fighting corruption in the country.

The really came after a deputy chairman of the anti-corruption watchdog was arrested. "Please do not allow the mafia of corruption control the KPK," one of the leaders of the demonstrators said. "Long live KPK," chanted the demonstrators.

KPK has been at the front line in fighting rampant graft in the largest economy of Southeast Asia.

Deputy Chairman of KPK Bambang Dwojanto was arrested by police on Friday morning and was charged of asking witnesses to give fake testimonies about the disputes on the election at Central Kalimantan province in 2010 at the constitutional Court.