As recently as six weeks ago, about 350-400 people were crossing into El Paso per day, but the past few days have brought 2,000 or more.

One megawatt can power around 1,000 US homes on a typical day, but only about 200 homes on a hot summer day in Texas.

Meteorologists forecast high temperatures in Houston, the biggest city in Texas, would hit 37.8 Celsius almost every day from July 12-19.

Mass shootings have become commonplace in the US, with at least 176 so far in 2023, the most at this point in the year since at least 2016, reports say.

The man's neighbours had asked him to stop shooting a semiautomatic rifle in his front yard because it was keeping their baby awake.

One suspect is in custody and police are looking for another possible suspect.

Uvalde officials came under scrutiny after nearly 400 law enforcement officers waited outside school classrooms for more than an hour before confronting and killing the shooter.

Mandy Gutierrez was placed on administrative leave, with pay, after an investigation by a Texas legislative committee found that she knew about security issues around the school.

The suspension follows the release of a report on an investigation by a Texas legislative committee into the May 24 shooting.

The truck, carrying migrants from Mexico, Guatemala, Honduras and El Salvador, was discovered abandoned in a desolate, industrial area near a highway about 160 miles north of the US-Mexico border.

Officials described finding the trailer's rear door ajar with bodies stacked inside that were hot to the touch.

If convicted each man faces a maximum sentence of life in prison, or possibly the death penalty, the US Justice Department says.