Earlier: Authorities in West Virginia say a five-year-old and a two-year-old who wanted to visit their grandfather took their mother's car for a three-mile drive, before crashing it and escaping unharmed.

A West Virginia mayor has resigned after she posted a response to a racist comment about US first lady Michelle Obama on Facebook.

At least 23 people have died after floods swamped parts of West Virginia.

Eighteen people have been killed after heavy rain in West Virginia destroyed or seriously damaged more than 100 homes and left tens of thousands without power.

A 14-year-old boy is in custody after holding 29 students and a teacher hostage at gunpoint in a West Virginia classroom.