21 people dead

Twenty-one killed in attack at US primary school

The 18-year-old gunman carried out the killings at Robb Elementary School in the city of Uvalde.

State Senator Roland Gutierrez who has also released the higher death toll said he was briefed by state police on the fatalities.

The teen is also suspected of killing his grandmother before unleashing the school shooting rampage, three law enforcement sources confirmed to CBS News, the BBC's US partner.

The children attending the school are aged between seven and 10 years.