English Defence League
Bedfordshire Police said they were called to reports of an altercation at the holiday park on Sunday afternoon.
Historian is suing the far-right activist, real name Stephen Yaxley-Lennon, after a campaign of harassment and intimidation at his home.
English Defence League founder Stephen Yaxley-Lennon said "everyone should vote for Boris Johnson".
Stephen Yaxley-Lennon had been handed a nine month term.
Violent demonstrations erupted outside the Old Bailey as Stephen Yaxley-Lennon's supporters protested the sentence.
The far-right activist broadcast footage from outside Leeds Crown Court on Facebook Live last May.
The former English Defence League (EDL) leader is accused of committing contempt of court, which he denies.
But Burger King has reminded everyone that it will still be selling them.
The 16-year-old said he and his family had been forced to move out of Huddersfield after they received threats.
The 36-year-old could be sent back to jail if he is found in contempt.