Two cruise passengers are reportedy fighting for their lives and others are seriously injured after an excursion bus collided with a car during a cruise sponsored trip to South Island, according to the Sun newspaper.

The cruise passengers, who were guests from the Celebrity Cruises’ Solstice cruise ship, were on an excursion near the South Island town of Akaroa.

The excursion bus reportedly slammed into a car on a “twisting stretch of road winding through the mountain range” near Akaroa, sending the bus careering a hundred feet down a steep embankment.

The bus trip through the mountains to Akaroa from Christchurch includes “perilous hairpin bends where there is barely enough room for two cars to pass each other.”

The bus was carrying more than two dozen passengers from the Celebrity cruise ship.

The Celebrity ship is currently cruising around New Zealand and Australia.

There have been numerous bus excursions in the past several years where guests from Celebrity Cruises and its parent company, Royal Caribbean Cruises, have been seriously injured or killed. In addition to many cruise sponsored excursion accident in the Caribbean, twelve U.S. cruise passengers from a Celebrity cruise ship died in Chile during an independent excursion bus tour from the Celebrity Millennium.

According to CBS News, a bus of cruise passengers was returning to the Celebrity cruise ship from an excursion to Lauca National Park when the bus plunged off the rugged highway near the city of Arica, 1,250 miles north of Santiagos. The deadly accident occurred in 2006. The excursion bus werved to avoid an approaching truck and tumbled more than 100 yards down a mountainside.

Photo credit: NZ Herald via Sun