” letter bomb exploded at the office of a Swiss nuclear industry lobbying group on Thursday, slightly injuring two employees, a police spokesman said.
The letter bomb exploded at the fourth floor office of Swissnuclear in the northern town of Olten at 7.:45 local time as personnel were opening the mail, Andreas Mock, a spokesman for the local police said. Mr. Mock said that a woman employee suffered injuries to her hands and arms and another employee complained of hearing problems as a result of the explosion. “
Source: Letter Bomb Injures 2 at Swiss Nuclear Office – NYTimes.com