World
Heat wave grips US south; Texas power grid tested

AUSTIN, Texas: Texas' power grid operator asked residents Tuesday to voluntarily cut back on electricity due to anticipated record demand on the system as a heat wave kept large swaths of the state and southern U.S. in triple-digit temperatures.

On the last day of spring, the sweltering heat felt more like the middle of summer across the South, where patience was growing thin over outages that have persisted since weekend storms and tornadoes caused widespread damage.