The Kunsthal's alarm system went off shortly after 3 a.m. local time, alerting the exhibition hall's private security detail.

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Palin's successor at City Hall, Mayor Dianne M.

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On Friday, Democratic leaders in New York, including Gov. David Paterson, state legislators and city council members, plan to endorse Obama at a 1 p.m. news conference at New York's City Hall, the sources said.

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Poet Brian Patten, who will be part of a double bill with Roger McGough at St George's Hall, said the festival was "exciting, wide-ranging and inclusive and I'm really proud to be part of it".

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