Liberation Tigers of Tamil Eelam (LTTE) set off a claymore mine in Rathmalana wounding 4 STF personnel and 16 civillians. The target of the claymore mine is said the be an STF troop transport although its explosion in rush hours inflicted 16 civillian casualties.
Update: 2 of the wounded civillians have died. The STF transport was en route from the training base when it was attacked. There were 9 personnel on board at the time of attack.