Top-selling Bild newspaper said the zoo had received a hand-written fax from a suspected animal hater with the words: "Knut is dead! Thursday midday." But that deadline came and went safely for media star Knut, who has been on newspaper front pages around Germany and the world for weeks. "He is safe and in good spirits," said zoo official Ragnar Kuehne after the time had passed.
Berlin police said they had investigated a letter containing a threat but did not believe it was serious. Nonetheless, Bild said the zoo had trebled the number of minders responsible for Knut's safety to 15.