HospitalstaffmournthepassingofformerPrimeMinisterLeeKuanYewoutsidetheSingaporeGeneralHospitalonMarch23，2015inSingapore.[Photo/Agencies]SINGAPORE-SingaporehaddeclaredaperiodofnationalmourningforformerPrimeMinisterLeeKuan Yew from Monday to Sunday， the Prime Minister's Office said Monday.The announcement was made by Prime Minister Lee Hsien Loong， who will address the nation 'live' at 8 am local time Monday.Lee Kuan Yew， who had been struggling with severe pneumonia in hospital since Feb 5， passed away Monday morningAs a mark of respect to the late founding prime minister， the state flags on all government buildings will be flown at half-mast from Monday to Sunday. A card for Singapore's former prime minister Lee Kuan Yew lies at a well-wishing corner at the Singapore General Hospital in Singapore， March 23， 2015.[Photo/Agencies]A private family wake will be held from Monday to Tuesday at Sri Temasek.Lee's body will lie in state at Parliament House from Wednesday to Saturday for the public to pay their respects. Those who wish to pay their last respects at Parliament House can do so from 10 am to 8 pm daily from Wednesday to Saturday.A State Funeral Service will be held at 2 pm on Sunday at the University Cultural Center， National University of Singapore. People mourn the passing of former Singaporean prime minister Lee Kuan Yew at a well-wishing corner at the Singapore General Hospital in Singapore， March 23， 2015. Lee， Singapore's first prime minister and architect of the Southeast Asian city-state's rapid rise to global trade and financial center， died early on Monday， aged 91， the Prime Minister's Office said. [Photo/CFP] A woman takes photos of cards for former Singaporean prime minister Lee Kuan Yew， placed at a well-wishing corner at the Singapore General Hospital in Singapore， March 23， 2015. [Photo/Agencies] Lawrence Hee， 68， arrives amongst the first mourners for former Singaporean prime minister Lee Kuan Yew， at a well-wishing corner at the Singapore General Hospital in Singapore， March 23， 2015. [Photo/Agencies] A woman and her daughters speak to the media as they mourn the passing of former Singaporean prime minister Lee Kuan Yew， at a well-wishing corner at the Singapore General Hospital， March 23， 2015. [Photo/Agencies] The state flag is lowered to half-mast during the singing of the National Anthem during the morning assembly at Raffles Girls Secondary School in Singapore， March 23， 2015. [Photo/Agencies] A woman and her daughters cry as they mourn the passing of former Singaporean prime minister Lee Kuan Yew， at a well-wishing corner at the Singapore General Hospital， March 23， 2015. [Photo/CFP] People pen their condolences on the passing of former prime minister Lee Kuan Yew， outside the Istana in Singapore， March 23， 2015[Photo/Agencies] People queue up to pen their condolences as they mourn the passing of former prime minister Lee Kuan Yew outside the Istana in Singapore March 23， 2015.[Photo/Agencies]