The Guardian obtained photos with cluster bombs uncovered by demining groups that worked in the regions that witnessed heavy fighting in 2008-2009.
Deminers also told the newspaper that they had found munitions in the so-called "no-fire zones," in which around 300,000 people were said to gather for security concerns.
The revelations came a week after a session of the Human Rights Council opened in Geneva where the government of Sri Lanka is to be questioned about investigation of war crimes committed during the civil war.
The civil war in Sri Lanka, with government troops fighting the Liberation Tigers of Tamil Eelam (LTTE) struggling for secession of north and east parts of the island mainly populated by the Tamils, erupted in 1983 and lasted almost 26 years. In 2009, the Sri Lankan troops managed to seize the city of Kilinochchi, de-facto LTTE capital, and kill the LTTE head Velupillai Prabhakaran, which put an end to the war that claimed the lives of up to 100,000 people.
