Two people have died of their wounds in the Texas mass shooting, raising the death toll in the massacre to 22.
A 21-year-old Dallas resident is in police custody for the El Paso killings, with Texas Governor Greg Abbott claiming it was a hate crime.
In total, 31 people have been killed in back-to-back shootings during the weekend in El Paso and Dayton, Ohio.
US President Donald Trump, who is planning a visit to the stricken community, has blamed the internet and violent video games for fostering violence.

Trump condemns, won't apologise for video with racist clip on Obamas
Search for Nancy Guthrie, missing 6 days from Arizona home, turns to new message
WHO says one person dead from Nipah virus in Bangladesh
Explosion at mosque in Pakistan's capital kills 31
Hong Kong media tycoon Jimmy Lai to be sentenced on February 9
