The premier has yet to return to Lebanon and rumours have swirled that he was being held in Saudi Arabia against his will. A week outside Lebanon, rumours have circled that Hariri -- who also holds Saudi nationality -- is under de facto house arrest in the kingdom. Aoun has yet to formally accept Hariri's resignation and has criticised the circumstances surrounding it as 'unacceptable'. In his shock announcement, Hariri accused Iran and its Lebanese ally Hezbollah of taking over his country and destabilising the broader region, saying he feared for his life. His statement prompted fears that Lebanon - dominated by rival camps led by Hariri and Hezbollah - would be caught up in spiralling tensions between Riyadh and Tehran.