The U.S. Army has said the five Fort Hood soldiers who died when a rain-swollen creek swept their vehicle into rushing waters were in the right place for their intended training.

Yet the tragedy is prompting multiple investigations into the circumstances of the deaths and how the military may handle risky training conditions in the future.

The lead Army agency on safety and occupational health dispatched a team to Fort Hood on Friday to investigate the circumstances of the Thursday training exercise on the sprawling Army base in which rescue crews continue to look for four other missing soldiers.

Michael Negard, spokesman for the Army's Combat Readiness Center, says the aim of the investigation is to help the military prevent other such incidents.