Our thoughts are with the families who have lost loved ones in this incident, which underlines the threats faced by our personnel as they continue to hand over security operations to their Afghan counterparts ahead of UK combat operations concluding by the end of next year.
Security in Helmand, where most UK forces are based, is steadily improving with Afghan forces already responsible for the bulk of the province - but the environment in which our troops operate remains risky and dangerous, including the threat of improvised explosive devices and insurgent attack.
Family, friends and colleagues have been remembering three British soldiers killed in a roadside bomb in Afghanistan.
The deaths of three British soldiers in one incident in Afghanistan still has the power to shock us. And yet it is no surprise.