Three of the four soldiers killed Feb. 13 by a roadside bomb were assigned to the 7th Special Forces Group, while the fourth soldier belonged to a civil affairs unit, the Pentagon confirmed Friday.

The soldiers were identified as: Sgt. 1st Class Chad A. Gonsalves and Staff Sgt. Edwin H. Dazachacon of 3rd Battalion, 7th Special Forces Group; Staff Sgt. Clinton T. Newman of the 321st Civil Affairs Brigade; and Sgt. Alberto D. Montrond of Group Support Battalion, 7th Special Forces Group.

Gonsalves, 31, was from Turlock, Calif.; Dazachacon, 38, was a native of Belleville, Ill.; Newman, 26, was from San Antonio; and Montrond, 27, was from Suffolk, Mass.

The four soldiers were killed just north of Deh Rawod, Afghanistan, when a powerful blast hit their up-armored Humvee.

An investigation into the incident is ongoing, officials said Friday.

According to family members, the Fort Bragg, N.C., soldiers were to be memorialized at a Friday service in North Carolina.

There was no information on a service for Newman, who, according to media reports, was a reservist who had been called back to active duty for a second tour in Afghanistan.

Sign Up for Daily Headlines

Sign up to receive a daily email of today's top military news stories from Stars and Stripes and top news outlets from around the world.

Sign Up Now