A memorial service will be held at 7 tonight for Sgt. Julian Manglona, a Hawaii Army National Guard soldier who died last week after a training exercise in Fort Hood, Texas.

Manglona was a reservist from the 100th Battalion.

The service will be held at the 100th Battatlion Veterans Club House with Army Reserve Soldiers from the 9th Mission Support Command and former members of the 100th Battalion, 442nd Infantry attending.

Manglona, who was assigned to the 29th Infantry Brigade Combat Team, died after completing a six-mile run.

Fellow soldiers training with Manglona performed CPR and mouth-to-mouth resuscitation. He was taken to Coryell County Memorial Hospital in Gatesville, Texas, where he was pronounced dead.

The official cause of his death is unknown at this time, U.S. Army Reserve public affairs officer Brian Melanephy said in a statement.

The combat team, headquartered at Kalaeloa, had been at the Central Texas Army facility to conduct mobilization training.

In August, about 1,200 soldiers with the 29th Infantry Brigade Combat Team left for training at Fort Hood. The unit is scheduled to be deployed to the Middle East later this month. This is the second combat deployment for the 100th Battalion.

The brigade is made up of soldiers from Hawai'i, Arizona, American Samoa, Guam and Saipan.