The fatal incident took place at the Clovis-Carver Public Library on Monday afternoon, according to Clovis City Manager Tom Phelps.
Phelps said that the shooter has been apprehended.
The victims were taken to a nearby hospital in Lubbock, Texas.
According to The Eastern New Mexico News, police surrounded the building for more than an hour and multiple ambulances, including air ambulances, were called to the scene.
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