PARIS (Reuters) - Five years after Islamist killers struck in postwar France’s deadliest attack, its Prime Minister on Friday paid tribute to the victims, with the country again on high alert following a new wave of ideologically driven violence.The Nov. 13, 2015 rampage by jihadist suicide bombers and gunmen killed 130 people, wounded hundreds and left deep scars on the nation’s psyche. Premier Jean Castex laid wreaths at venues across the capital that were hit that night, the first outside the national stadium where the coordinated bloodletting began during a soccer match attended by then president Francois Hollande. The attackers also targeted the Bataclan concert hall, where some of France’s Muslim leaders later held a separate ceremony, as well as cafes and restaurants - sites that have been under close police watch in the run-up to Friday’s anniversary. France is back on its highest security alert following, since September, a stabbing outside the former offices of the Charlie Hebdo magazine, the beheading of a history teacher who had shown his class cartoons of the Prophet Mohammad and a fatal attack in a church in Nice.