Powder causes Swiss post office alert

More than 100 postal staff were kept at work for medical checks today after white powder was found in an envelope at a sorting office in central Switzerland.

An alarm was raised when white powder leaked out of a letter at a sorting office near Lucerne’s rail station,

Four people who were in the room at the time were treated with antibiotics, said Heinz Steiner, who is in charge of the police operation.

He said staff were nervous because of memories of a series of anthrax attacks on the United States three years ago.