The father of the 14-year-old boy accused of killing two teachers and two students in a Georgia school has also been charged with murder.

According to BBC News, 54-year-old Colin Gray has been arrested and hit with four charges of involuntary manslaughter, two counts of second-degree murder and eight of cruelty to children.

It added that the charges were directly connected to his son’s actions and “allowing him to possess a weapon”.

14-year-old Colt Gray is accused of the killings on Wednesday at Apalachee High School in Winder, near Atlanta.

He is due in court today charged – as an adult – with four counts of murder.