By Jonathan Kent
BBC correspondent in Kuala Lumpur
A member of one of Malaysia's royal families has been arrested following a brawl at a wedding reception on one of the country's tropical holiday islands.
Johor's royals have been in trouble before
More than 100 guests had booked into a resort on Rawa to celebrate the wedding of two friends from Brazil.
But the celebration turned sour when the reception was gate-crashed by a group of locals, allegedly led by a member of the Johor royal family.
Reports say several foreign guests had to be taken to hospital.
It is the latest in a series of incidents involving the royal family of Johor, which is one of nine Malaysian states with its own royal house, and also one of its most troubled.
The problems began when a female guest refused to dance with one of the gatecrashers. A fight broke out and a royal allegedly ordered the guests off the island.
A group of locals is reported to have returned later, armed with golf clubs and weapons.
Police have confirmed they arrested four people, including a member of the Johor royal family, after a number of guests were injured. Police have refused to release the names of the people arrested.
This is just the latest incident linked to Johor's royalty.
The current sultan sparked a constitutional crisis when he seriously assaulted a hockey coach. The incident led Malaysia's parliament to remove the traditional rulers' immunity from prosecution in 1993.
His son was also banned from playing hockey for five years after a panel concluded that he had assaulted a rival goalkeeper after losing a match.