GALVESTON, Texas — A fire on a cruise ship has caused the vessel to operate on emergency generator power.

Officials say the ship Carnival Triumph experienced an engine room fire Sunday morning while the vessel was sailing approximately 150 miles off the coast of the Yucatan Peninsula.

There are 3,143 guests and 1,086 crew members on board the four-day cruise that departed Galveston on Thursday.

The ship’s automatic fire extinguishing systems activated and the fire was contained to the aft engine room, according to Carnival.

Carnival Triumph is currently without propulsion and the ship is operating on emergency generator power. The ship’s technical crew is continuing to assess the damage and attempting to restore power.

Officials said that a tugboat is en route to the ship’s location and will tow the vessel to Progreso, Mexico, which is the closest port to the ship’s current location, which will allow guests to disembark and get them home as quickly as possible. The ship is expected to arrive in Progreso Wednesday afternoon.

There were no casualties or injuries to guests or crew.

All guests have been asked to remain in the ship’s public areas and open decks.

Another ship, the Carnival Elation, is currently on scene and transferring additional food and beverage provisions to the Carnival Triumph, officials said.

Carnival says all guests on the current voyage will receive a full refund inclusive of gratuities and any transportation expenses.

Carnival says it is in the process of contacting the designated emergency contacts for all guests on board. Concerned family and loved ones of guests and crew may call 1-888-290-5095 or 1-305-406-5534.

Carnival has contacted guests booked on the next voyage which was scheduled to depart Monday to make them aware of the situation. Monday’s voyage will not depart as scheduled. Guests have the option of cancelling now and receiving a full refund or waiting for further information to determine if a shortened, partial voyage may be possible.