President Obama: "This is our best chance in more than a decade to take common-sense steps that will save lives." http://t.co/HDnQwio04X
President Obama: "Right now, 90% of Americans—90%—support background checks that will keep criminals from buying a gun." #DemandAction
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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."