3 hurt 1 killed in vehicle rollover at Fort Hood training area. FORT HOOD, Texas

A soldier was killed at Fort Hood Wednesday morning, when the vehicle he was riding on rolled over during a training accident, U.S. military said in a statement.

Pfc. Juan Castro, 19, a resident of San Antonio, was riding in a Humvee with other three soldiers, when the vehicle crashed. Castro was crushed to death. The other soldiers were injured, but not in life-threatening conditions, Army officials said.

The four soldiers were transported to Carl R. Darnall Army Medical Center.

The incident is still under investigation, officials said.

According to the release, posted Thursday, Castro had entered the Texas Army National Guard in February of 2014 as a cavalry scout. During his service, he was assigned to several infantry and cavalry divisions. Castro was awarded the National Defense Service Medal and the Army Service Ribbon.