Egyptian President Mohamed Mursi has ended a day of mass protests in the country - by both his supporters and foes - by announcing a referendum will be held on a new controversial constitution in just two weeks time.
Opponents fear it could give him new powers and usher in an Islamist state, severely restricting their rights, particularly those for women.
But more than 200,000 people marched in support of him on Saturday.
ITV News's Sally Biddulph has the lastest on a divided nation:
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The Metropolitan Police Federation, which set up the official JustGiving site, said it felt a "suitable amount" had been collected.
There is no evidence the Westminster attacker Khalid Masood was associated with so-called Islamic State or al Qaeda, the Met Police said.
Janet Ajao said in a statement: "I do not condone his actions nor support the beliefs he held that led to him committing this atrocity."