A fire at a discount store in northwestern Mexico has killed at least 23 people and injured another 11, the state governor said on Sunday. The fire ripped through an outlet of Waldo's, Mexico's chain of dollar-format stores, on Saturday in Hermosillo, the capital of Sonora state. "The explosion that occurred in the Waldo's store in the center of Hermosillo has left a profound sadness in all Sonorenses,"  Governor  Alfonso Durazo said during a video briefing published on social media. "At the