Hundred of bodies were exhumed from a gaping in the village of Tomasica in the northwestern region of Prijedor , freshly-dug hole where hundreds of Muslims and Croats massacred in the Bosnian war between 1992 and 1995 . It is named “the triangle of horror”.
The Serbian authorities have established camps in northwestern Bosnia during the war.
The Institute is still searching for 1,200 people from the 3,000 who went missing in the area during the war.
"Since the start of exhumation work, on September 3, we exhumed 240 victims, and among them 170 complete bodies," the Institute's spokeswoman Lejla Cengic told AFP.
She said incomplete skeletons were those of victims moved from Tomasica to another grave by bulldozers to try to cover up the crimes.
The largest mass grave containing the remains of the Bosnian conflict counted 629 people and has been found in Eastern Bosnia in 2003.