washington u.s. state department say tuesday urge saudi arabia fair transparent handle prosecutions stem sweep corruption probe result arrest dozens top saudi officials state department spokeswoman heather nauert say unite state advance knowledge corruption crackdown unfold weekend result detention members royal family minister investors include prominent billionaire businessman alwaleed bin talal continue encourage saudi authorities pursue prosecution people believe corrupt officials expect fair transparent manner nauert tell brief call government saudi arabia nauert say unite state receive assurances saudi government would another u.s. official late tell reporters misspoken assurances could discuss public ask saudi arabia increasingly tough talk toward iran lebanon nauert point say iran destabilize activity lebanese hezbollah group past record attack u.s. military personnel saudi arabia accuse lebanon monday declare war aggression hezbollah lebanese shi ite group back iran saad al-hariri saudi-allied lebanese prime minister resign saturday blame iran hezbollah resignation speech nauert tell reporters lebanon strong u.s. partner hezbollah influential tie across lebanon hariri coalition government take office last year group nearly lebanon main party include hezbollah michel aoun hezbollah ally president unite state strongly support legitimate institutions lebanese state nauert say expect members international community respect fully institutions sovereignty political independence lebanon u.s. urge saudis fair open handle graft prosecutions