Nineteen children and two teachers have been killed after a gunman opened fire at a primary school in Texas - what do we know so far about what happened?
On Tuesday, 18-year-old Salvador Ramos, crashed a vehicle before entering Robb Elementary School in the city of Uvalde, around 80 miles west of San Antonio.
Texas Department of Public Safety Sergeant Erick Estrada told CNN that Ramos crashed a truck believed to be his in a ditch nearby the school, where he attempted to enter.
He added that the gunman wore body armour and reportedly shot his grandmother, who is in critical condition, before entering the school.
Law enforcement tried to engage, but Ramos unfortunately entered the school where he went through "several" classrooms and began shooting.
He was armed with a handgun and possibly a rifle.
Officials said Ramos, a student at Uvalde High School, is dead and is believed to have died after being shot by police officers.
Police said Ramos acted alone and that they are not looking for any other suspects.
Officials did not immediately reveal a motive, but the governor identified Ramos and said he was a resident of the heavily Latino community about 135km west of San Antonio.
19 children and two teachers were killed in the shooting.
The first victim named in the attack is fourth-grade teacher Eva Mireles, who has a daughter and was married to a policeman.
Ms Mireles' aunt, Lydia Martinez Delgado, has described her niece as the "fun of the party".
University Hospital in San Antonio, said it is treating four patients from the shooting including:
A nine-year-old girl in 'fair condition'
A 10-year-old girl in 'good condition'
A 10-year-old girl in 'critical condition'
A 66-year-old woman in 'critical condition'
What have people said?
US officials, politicians and other notable figures have spoken out against the attack.
Joe Biden has called the attack a "massacre" and has urged for Congress to stand up to the gun lobby.
Meanwhile former President Barack Obama echoed this message and said the US is "paralysed" by "a gun lobby".
US Senator Chris Murphy, who came to Congress representing Sandy Hook gave an impassioned speech begging politicians to "find a path forward here".