Police said Friday they are raiding apartments and offices in Germany over possible links to the Austrian Islamic State sympathiser who went on a deadly gun rampage in central Vienna. The sites in Osnabrueck, Kassel as well as in Pinneberg area that were searched belong to four people, who "are not believed to be involved in the attack," said the federal criminal agency. "But there may be links to the alleged assasin," it added on Twitter. hmn/wdb