French drug convict, Serge Atlaoui, 51, lost an appeal against his death sentence yesterday, but his lawyers vowed to fight on and prevent another foreigner from facing the firing squad in Indonesia after a series of executions that generated an international uproar. He was due to be executed alongside seven other foreign drug offenders two months ago but won a temporary reprieve after Paris stepped up pressure, with authorities agreeing to let an outstanding appeal run its course.