Valero Energy refinery explosion causes thick smoke; air quality monitoring underway.

Dark plumes of smoke engulfed the Texas skies after an explosion occurred at an oil refinery in Port Arthur. While officials ...

Officials say an oil refinery fire near the Texas coast has been put out and a shelter-in-place order has been lifted ...

An explosion was reported in Iran's Tehran province on Wednesday, with smoke seen rising above a building in the city of Parand, according to local reports and videos shared online. Footage ...