Chilling footage has appeared to capture a shooting suspect entering an elementary school in Texas before slaughtering 19 children and two teachers.
Robb Elementary School in the city of Uvalde was placed on lockdown at around 11.45am yesterday after gunshots were heard.
The attacker allegedly fired at the elementary school, which is believed to cater for children aged seven to 10, after exchanging gunfire with border patrol agents and barricading himself inside the building.