Today marked the final day of Benedict XVI as Pope.
Crowds cheered as he gave a final farewell from the balcony of the papal palace in the Italian town of Castel Gandolfo.
Later, he tweeted that he is "now a simple pilgrim, on his final pilgrimage".
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Ministers are reportedly considering plans in a bid to lower inward migration.
In a tweet on Saturday, the US president didn't give a reason for his absence but said he wished"everyone well and have a great evening".