Chinese Vice President Wang Qishan will attend Queen Elizabeth's funeral at the invitation of the British government, the ministry of foreign affairs said on Saturday.
Stuart Cundy, London's Metropolitan Police Deputy Assistant Commissioner, said the force was preparing for events ranging from terrorism threats to protests and crowd crushes.
Children's charities and bereavement groups have offered advice about how to have such a conversation, answer questions, and decide whether to watch her funeral together.
The guests include the Crown Prince of Bahrain, the Amir of the State of Qatar and the Sultan of Oman. The Saudi royal family will also be represented, the source said.