A BRAWL onboard a P & O cruise ship has forced the vessel to return back to Sydney, where police were forced to remove seven passengers.

A P & O cruise ship has been forced to return to Sydney, after an out-of-control brawl broke out onboard involving passengers.

It is understood police met the Pacific Explorer vessel at Bradleys Head on the north shore of Sydney Harbour, and removed six men and a woman after a fight took place at 1am Sunday morning. The brawl allegedly involved two bucks’ parties.

“P & O Cruises asked the NSW Police Marine Area Command to attend Pacific Explorer this morning to remove a group of people from the ship as a result of their behaviour on board overnight,” a statement sent to news.com.au by Carnival Cruises read.

“This is in line with our strict policy of zero tolerance of excessive behaviour that affects the safety, comfort and enjoyment of other guests.”

The spokesperson for P & O Cruises said while such situations are rare on board their ships, strong action will be taken when necessary.

The Pacific Explorer is currently on a three-night round trip cruise from Sydney, and according to the spokesperson — police met the ship inside the harbour to conduct the transfer of the group back to shore.

“We are assisting police in their inquiries,” the statement continued.

“The group removed today will no longer be welcome to travel with P & O Cruises or any of its associated brands. Pacific Explorer is due to return to Sydney tomorrow to complete the short break cruise.”

A police spokeswoman told the Daily Telegraph that inquiries are continuing.

“The Marine Area Command will continue their inquiries into the alleged fight once the group has been brought to shore.”