US snow

US snow: Winter storm tightens grip in southern states

President Joe Biden has approved a state of emergency in Texas where a surge in demand for electricity has led to widespread power cuts.

The National Weather Service (NWS) said more than 150 million Americans were now under winter storm warnings.

Kentucky, Mississippi, Alabama, Oregon and Oklahoma are among states affected.

The freezing storm even reached northern parts of Mexico where more than four million homes and businesses lost power early on Monday.