On 23 March 2015, Singapore's founding prime minister, Lee Kuan Yew, passed away at the age of 91, having been hospitalized with severe pneumonia since 5 February. His death was officially announced on national channels by Prime Minister Lee Hsien Loong. In response to his passing, numerous global leaders and entities expressed their condolences. The Singaporean government declared a week-long national mourning period from 23 to 29 March, during which all flags in Singapore were flown at half-mast. Lee Kuan Yew was cremated at Mandai Crematorium and Columbarium on 29 March.