US troopsAt least three NATO service members were killed following a roadside bomb blast in southern Afghanistan on Tuesday.

NATO-led coalition security forces following a statement announced, “Three International Security Assistance Force service members died following an improvised explosive device attack in southern Afghanistan today.”

The statement did not disclose further information regarding the exact location of the incident and nationalities of the deceased soliders.

Coalition security forces officials generally do not disclose identities of the NATO soldiers killed in Afghanistan saying, “It is ISAF policy to defer casualty identification procedures to the relevant national authorities.”

At least 42 NATO service members including 33 US troops, 3 British troops and 6 soldiers from the other NATO member countries have been killed in Afghanistan since the beginning of 2012.

This comes as Taliban on Sunday launched what it called its annual “spring offensive” and pledged to target foreign military bases and diplomatic areas.

Taliban militants frequently use improvised explosive device as the weapon of their choice to target Afghan and coalition security forces.