Sunak said the dog breed is a “danger to our communities” and will be banned by the end of 2023 following a series of attacks.
One of the recent dog attacks is suspected to have involved the American XL Bully breed but it has not yet been confirmed.
In a video statement posted to X, formerly known as Twitter, Prime Minister Rishi Sunak said: “The American XL bully dog is a danger to our communities, particularly our children.
“I share the nation’s horror at the recent videos we’ve all seen. Yesterday we saw another suspected XL bully dog attack, which has tragically led to a fatality.
“It is clear this is not about a handful of badly trained dogs, it’s a pattern of behaviour and it cannot go on.
“While owners already have a responsibility to keep their dogs under control, I want to reassure people that we are urgently working on ways to stop these attacks and protect the public.
“Today I have tasked ministers to bring together police and experts, to firstly define the breed of dog behind these attacks, with the view to then outlawing it.
“It is not currently a breed defined in law, so this vital first step must happen fast.
“We will then ban the breed under the Dangerous Dogs Act and new laws will be in place by the end of the year.
“These dogs are dangerous, I want to reassure the public that we will take all necessary steps to keep people safe.”