 One person has been killed and several are missing after explosion in an apartment building in Jersey Island. Emergency services and gas component vehicles were at the scene of a residential building explosion on the island of Jersey on Saturday. One person was killed and a number of others were missing after an explosion early on Saturday morning at a block of flats on the island of the coast of northern France. Police set a three-story building located near the harbour in the island's capital St. Halier had completely collapsed and a search and rescue operation had begun to find around a dozen other people unaccounted for. Jersey is a British crown dependency with a reasonable population of just over 100,000 people.