Nineteen young children and two adults have died in a shooting at a primary school in south Texas.

officials said the gunman opened fire at Robb Elementary School which teaches children aged seven to 10 – in the city of Uvalde before he was killed by law enforcement.

The teenager is suspected of shooting his grandmother before the rampage.

Texas Governor Greg Abbott said the shooter, whom he named as Salvador Ramos, abandoned a vehicle before entering the school to “horrifically, incomprehensibly” open fire.