Semanggi-Two tragedy occurred on September 24, 1999. Yap Yun Hap, a student and eleven people were killed and 217 were injured.
Yap Yun Hap was an Indonesian activist who was shot by irresponsible personnel of armed forces, when he staged a demonstration at Semanggi, South Jakarta. He was a student of the Department of Electrical Engineering majoring at the University of Indonesia in 1996. He was buried at Pondok Rangon cemetery in East Jakarta.
The tragedy started from the public’s protest on the implementation and agenda of the Special Session that caused the death of civilians. About 17 civilians died on the first Semanggi One on November 11-13, 1998 where people and students protested against Indonesia's transitional government.