As the millionth Syrian refugee crosses the border, Brigadier General Salim Idris, head of the Free Syrian Army, is asking the EU to lift its arms embargo to help Syrian rebels protect themselves.
He says 150,000 armed rebels are in Syria now, but 200,000 more are unarmed and willing to fight.
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The prime minister was shouted at as she left the scene of the tragedy in which at least 79 people died.
Father-of-six Makram Ali, 51, was already receiving medical treatment as the attack unfolded. He died from multiple injuries, police say.
A review of how police and security services dealt with the latest terror attacks in the UK is to be launched, Amber Rudd has announced.