A gastrointestinal illness is affecting some passengers aboard a cruise ship that docked in the Port of Saint John Sunday morning.

A representative with the P & O Cruises ship Aurora notified the port on Saturday.

“There seems to be some kind of gastrointestinal situation aboard the ship. My estimation it’s very minor because there’s no immediate health risk to the public, according to them. The Public Health Agency of Canada has advised that they feel it’s very low risk, “ said Capt. John McCann, the port’s vice president of operations, infrastructure and harbour master.

This is the ship’s first Canadian stop on a 25-day cruise that left Southampton U.K. on Sept. 3.

The ship's next stop is Halifax on Monday. The ship is scheduled to arrive at the Charlottetown Seaport Sept. 21.

McCann said the crew aboard the Aurora is taking the proper precautions and it's not clear how much involvement will be needed by the Public Health Agency of Canada.

“There may be some people quarantined aboard the ship but passengers will be disembarking today and it’ll be business as usual,” he said.

CBC News spoke to some of the passengers as they disembarked the ship in Saint John. A lot of the people coming off the boat said they had heard about the illness but heard that the illness was only affecting a couple of people at most.

One man said that the majority of the passengers are seniors and as a result may be more susceptible to contracting illness. He said that the Aurora's captain is keeping the passengers well informed and that it won't affect the itinerary of the 25-day cruise.