World leaders have been paying tribute to Pope John Paul II. Here's what some of them have said:
I was deeply saddened by the death of Pope John Paul II.
Quite apart from his role as a spiritual guide to more than a billion men, women and children, he was a tireless advocate of peace, a true pioneer in inter-faith dialogue and a strong force for critical self-evaluation by the Church itself.
United Nations Secretary General Kofi Annan
A great Pope - our most outstanding fellow countryman, the Holy Father, a good father to all of us, believers and non-believers, followers of different religions - is no more.
Polish President Aleksander Kwasniewski
We are grateful to him for the tireless and difficult work he carried out unstintingly against all forms of totalitarianism, violence, oppression and moral degradation, all in the name of the values of the Catholic Church, which are the supreme values of human dignity and solidarity.
Italian Prime Minister Silvio Berlusconi
A good and faithful servant of God has been called home.
The world has lost a champion of peace and freedom.
US President George W Bush
The world has lost a religious leader who was revered across people of all faiths and none. He was an inspiration, a man of extraordinary faith, dignity and courage.
Throughout a hard and often difficult life, he stood for social justice and on the side of the oppressed, whether as a young man facing the Nazi occupation in Poland or later in challenging the Communist regime.
He never wavered, never flinched, in the struggle for what he thought was good and right.
UK Prime Minister Tony Blair
The story of Pope John Paul II is that of a man of immense faith and conviction and, in latter years, great personal courage.
He engaged with human culture and civilisation in every aspect and in every corner of the world.
Irish President Mary McAleese