Austrian police warn of terror attack

European capitals have been warned by a "friendly intelligence service" of a possible shooting or bombing attack before the New Year, Austrian police say

Vienna police say that a "friendly intelligence service" has warned numerous European capitals of the possibility of a shooting or bomb attack in Europe before the New Year.

"Several possible names of potential attackers were mentioned, who were checked and the investigation based on (these checks) has so far yielded no concrete results," Vienna police said in a statement on Saturday, six weeks after 130 people were killed in Islamist militant attacks in Paris.