The government in a four-page statement lambasted the Sri Lanka Monitoring Mission (SLMM) and also accused its chief, Swedish army Major General Ulf Henricsson, of inciting violence.
The Sri Lankan government took exception to an SLMM report which had also blamed government forces for the recent upsurge in violence in the island nation despite a truce in place since February 2002.
The SLMM Friday released its report dated June 4 which said Colombo had failed to deliver on a promise to neutralise rival Tamil groups operating in areas under its control.
"The government's commitment to take all necessary measures in accordance with the ceasefire to ensure that no armed group or person other than government security forces will carry arms or conduct armed operations... has not been implemented," the report said.
It also blamed the Tigers for violations and singled out the recruitment of child soldiers as not only a violation of the truce but of international law.
The SLMM also called for