Presenter Andrew Marr is conscious and "responding to medication" following a stroke, the BBC has said.
Marr, who hosts The Andrew Marr Show and Radio 4’s Start The Week, became ill on Tuesday and was rushed to hospital, where he is "continuing to progress".
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The Islamic centre where the Manchester suicide bomber is thought to have prayed says the attack "has no place in Islam or any religion".
German chancellor Angela Merkel and Indian prime minister Narendra Modi among those to praise "great spirit" of Manchester people.
The bomber's identity has been confirmed by Greater Manchester Police.