Biden administration pledges to expand vaccinations as winter storms cause delays – as it happened

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• Winter storm amplifies power grid inequality for Texans

12.57am GMT

- Maanvi Singh and Joan E Greve

12.36am GMT

The winter storm has affected hospitals and medical centers across Texas.

Power and water outages have hit hospitals at the heels of a winter coronavirus surge. With roads shut due to the weather, some nurses in Austin told local media that they would trek to work on foot.

BREAKING: St. David's South Austin Medical Center, with 300 patients, is suffering a loss of water pressure and heat, officials say, "along with a number of other hospitals in the Austin area." Officials working to get water trucks there, among other solutions.