They do not normally carry weapons but terrorism fears in Norway ahead of Christmas mean that police on patrol will be armed for the next four weeks at least. <br /><br />Security services believe an attempted terror attack is ‘probable’ in the months ahead, with police and soldiers likely targets.<br /><br />Authorities say they fear the return of jihadists who have been fighting in Syria, estimating that around 60 people with Norwegian links have joined extremist groups in the war-torn country.<br /><br />Norway’s army has advised its members not to wear their uniforms when off-duty.