MOUNT VERNON, Mo. (AP) — Joyce "Dottie" Rambo, an influential gospel singer and songwriter, died early Sunday when her tour bus ran off the highway and struck an embankment. She was 74.

Seven other people on the bus were injured in the wreck about two miles east of Mount Vernon on Interstate 44, the Missouri Highway Patrol said. They were hospitalized in Springfield with moderate to severe injuries, according to the patrol.

It was unclear whether the crash was related to the severe storms and tornadoes that hit the region on Saturday. Storms also swept through the area later in the night, according to the National Weather Service.

Rambo, of Nashville, Tenn., was on her way to a Mother's Day performance in Texas, according to her Web site.