Law was passed following Highland Park shooting in 2022, and has been challenged by gun shops and gun rights groups

The US supreme court has refused to overturn an Illinois ban on assault weapons and high-capacity ammunition, which was passed following the deadly mass shooting in Highland Park, Illinois, in 2022.

The court rejected the request, made by a gun shop and a national gun rights group in an appeal of a lower court’s decision not to allow a preliminary injunction to block the law.