As number of cruise ship passengers and crews rise, numbers of medical emergencies from life-threatening heart attacks to sprained limbs cannot fail to increase in proportion. Occasionally, bizarre accidents occur, such as the 2007 incident along the svalbard coast where 18 Britonsstanding near the railing of their vessel suffered injuries (three serious) when blocks of ice from a glacier fell on them. Minor incidents, which are beyond the capacity of ships' medical services, require evacuation.