Armed police are investigating what is being described as a "serious incident" at a travellers' site in Peterborough.
Three people have been injured, two of them seriously.
All three have been taken to hospital.
ITV Anglia has more
More top news
Your afternoon weather update with Helen Plint.
An extreme endurance athlete from Cheltenham has become the first person in history to complete the British ultra-triathlon
Pet owners and cat lovers are being warned to stay on high alert after the so-called Croydon Cat Killer appeared to strike in another city.