The relentless rain also caused a dam to fail, creeks to overflow and roads and highways to close across the state.

A steady line of slow-moving thunderstorms that battered Oklahoma in recent weeks has set multiple rainfall records across the state and helped ease drought conditions

A least two people drowned when their vehicles were caught in floodwaters in Oklahoma on Wednesday as slow-moving thunderstorms inundated roads across parts of that state and Texas, authorities said,