The Commonwealth of the Northern Mariana Islands is an unincorporated U.S. territory in the Western Pacific, comprising 14 islands. Crime rates are generally low, though petty theft can occur in tourist areas on Saipan. The islands are located in an active typhoon zone, and super typhoons can cause devastating damage, as demonstrated by Typhoon Yutu in 2018. Medical facilities at the Commonwealth Health Center on Saipan are limited; serious medical conditions may require evacuation to Guam or Hawaii. Some islands have active volcanic features, and travellers should heed any volcanic activity warnings from local authorities.