Swiss authorities began a new series of pre-dawn arrests Thursday in the broad investigation, led by United States officials, into corruption in international soccer.<br />More than a dozen people were expected to be charged, law enforcement officials said, nearly doubling the size of an already huge case that has upended FIFA, soccer's multibillion-dollar governing body.<br />Some of the arrests took place at the same luxury hotel where other FIFA officials were arrested in May.<br />Swiss police entered the hotel, the Baur au Lac, through a side door at 6 a.m. local time.<br />A hotel manager told visitors in the lobby they had to leave the property because of "an extreme situation."