France was struggling to overcome one of its gravest post-war crises last night as every major city faced the threat of fierce rioting that began 12 nights ago and now seems to have spun out of control.Despite an assurance from Philippe Douste Blazy, the foreign minister, that France was "not a dangerous country", the spread of violence prompted the Foreign Office in London to warn travellers that trouble could break out "almost anywhere".Dominique de Villepin, the beleaguered prime minister, announced that officials in riot-hit areas would be authorised to impose late-night curfews "wherever it is necessary" in a bid to halt the disturbances.He rejected calls by a police union for troops to be sent in but said that 1,500 reservists were being called up and repeated an appeal to parents to keep adolescent rioters off the streets.Although the disorder began on the intimidating sink estates of Paris's northern suburbs, trouble had been reported yesterday in the early hours from most regions of the country. Even areas such as Brittany, the Loire and Bordeaux, favoured by British holidaymakers and second- home hunters, have now been drawn into the worst wave of unrest in France since the spring revolt of 1968 set in motion the downfall of Gen Charles de Gaulle.
