Why is the UK banning American XL Bully dogs?

Mr Sunak said he had ordered work to legally define the breed behind the recent attacks so it can be banned under the Dangerous Dogs Act, which applies in England, Wales and Scotland.
What is an American bully XL?
How many attacks have there been in UK?
In April, a 65-year-old grandmother was killed after she tried to break up a fight between her two American bullies at her home in Liverpool. The coroner noted that she had been found with "catastrophic injuries".
Last year, a 17-month-old toddler was mauled to death in her own home by one of the dogs in St Helens, one week after her family had bought it.
And in 2021, 10-year-old Jack Lis died from severe neck and head injuries after he was attacked by an American bully XL in Caerphilly, Wales. His mother, Emma Whitfield, has called for the dogs to be banned.
Are they banned in other countries?
The breed is also restricted in some countries, including the Republic of Ireland, where any American Bully must be muzzled and on a leash no longer than 2m (6ft 7in) when out in public.
Which dog breeds are banned in the UK?
What happens if you have a banned breed in the UK?