TEHRAN, Young Journalists Club (YJC) - So far the skeletal remains of more than 90 people have been unearthed in the north-western town of Mannar.
The mass grave is the second biggest found in the north since the end of the conflict in 2009.
The 26-year war between troops and separatist Tamil rebels left at least 100,000 people dead, and many missing.
A court ordered detailed excavations at the site - a former co-operative wholesale depot near the main bus terminus - after human remains were found by workers digging foundations for a new building earlier this year.
"The entire area can be divided into two parts. In one segment we have a proper cemetery. In the second part, you have a collection of human skeletons which have been deposited in an informal way," said Professor Raj Somadeva, a forensic archaeologist from the University of Kelaniya near Colombo, who is leading a team of experts at the site.
Source: BBC News