Manhunt for Berlin suspect intensifies

Trump denounces attack, vows tough immigration plan

German authorities were under fire on Thursday after it emerged that the prime suspect in Berlin's deadly truck attack, a rejected Tunisian asylum seeker, was known as a potentially dangerous extremist.

German prosecutors have issued a Europe-wide wanted notice for 24-year-old Anis Amri, offering a $104,000 reward for information leading to his arrest and warning he "could be violent and armed".