A gunman opened fire at Apalachee High School in the state of Georgia, and the authorities say one person has been arrested. US President Joe Biden says he is "mourning the deaths of those whose lives were cut short due to more senseless gun violence."

Also on the programme: Seven people have been killed in Ukraine's western city of Lviv during a fresh wave of Russian strikes. We speak to the city's mayor, Andriy Sadovyi, about the scale of the attack. And, a Japanese island has finally eradicated rabbit-killing mongooses after almost 25 years.

(Picture: People leave the scene of the shooting at Apalachee High School in Georgia, on 4 September 2024. Credit: ERIK S LESSER/EPA-EFE/REX/Shutterstock)