Princess Anne's Bull Terrier savaged another dog during the Royal Family's Boxing Day shoot, it has been claimed.
The Princess Royal, 72, took her pet along to the pheasant shoot at Sandringham where it allegedly ran across a field at the gamekeeper's dog and latched onto its ear.
Neither animal was killed in the attack, it is understood, but there was apparently a "lot of blood, screaming and shouting" at the annual event.
Anne has previously been convicted under the Dangerous Dogs Act after another one of her English Bull Terriers, called Dotty, bit two children at Windsor Great Park in 2002.
A year later at Sandringham, another of her terriers, Florence, savaged the late Queen's beloved corgi, Pharos, who had to be put down.
Referring to the latest alleged incident, an insider told The Sun: "It took a while to get the dog off the ear because it had really sunk its teeth.
"Everyone was OK in the end but the atmosphere was extremely tense afterwards for some time.
"A good few people questioned what if it had been Charlotte or George or any of the children instead of another dog?"
It is not known which one of Anne's Bull Terrier dogs launched the alleged attack.
Every Boxing Day, the Royal Family traditionally have lunch together before taking out their rifles and going on their annual hunting trip.
Like many royals before them, hunting has always been a favourite pastime - whether they are shooting stags, grouses or pheasants.
The annual season extends from August 12 to December 10 and is something which even the youngest royals go and watch.
But the royals previously came under fire for reportedly taking Prince George to the event, with psychologists warning of a link between cruelty to animals in childhood and antisocial behaviour in adulthood.
The Duke of Cambridge was also previously criticised for his passion for hunting as he still remains a high-profile advocate for animal conservation.
In 2014, Prince William and Prince Harry were admonished for going on a boar hunting trip on the Duke of Westminster's Spanish estate just days before joining a campaign against poaching and the illegal wildlife trade.
William, who is also the patron of Tusk, an African conservation initiative, was praised for his United For Wildlife campaign as it works to protect endangered species such as rhinos, tigers and elephants.
A spokesperson for Wiltshire Police said it has received any reports relating to Princess Anne's dog.
Buckingham Palace declined to comment on the matter.
