A Mozart opera cancelled for fears of protests over depicting the beheading of Muhammad is go ahead in Berlin.

The Deutsche Oper in the German capital said the production of Idomeneo will be staged after it received a new security assessment from the police.

Four performances of the opera were dropped in September after the risks of staging it were deemed "incalculable".

The decision, taken in the wake of the Danish Muhammad cartoons row, sparked a debate about free speech in Germany.

German Interior Minister Wolfgang Schaeuble called the decision crazy and Chancellor Angela Merkel warned against "self-censorship out of fear".