sentences:  The Menteri Besar (Chief Minister) of Johor, Abdul Ghani Othman cited that Sultan Ibrahim and immediate members of the royal family will undertake a mourning period of 40 days.During the mourning season, Sultan Ibrahim made his inaugural presence at the Conference of Rulers in February 2010 as the Sultan of Johor.On 30 June 2011, Sultan Ibrahim drove the last train from Tanjong Pagar railway station, having received tuition from Chief Locomotive Inspector Hasnol Azahari Aman of Keretapi Tanah Melayu to enable him to do this.