Explosion in Oslo

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NYTimes report has additional news:

Shortly after the apparent bomb attack, a man dressed as a police officer opened fire on a youth political meeting on the island of Utoya in the Oslo fjord, about 25 miles from the city, the police said. There were initial reports that Prime Minister Stoltenberg was scheduled to attend the meeting.
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Mr. Kvernen, the police spokesman, said he could not confirm whether there were casualties in the shooting incident at the summer camp near Honefoss, north of Oslo. Media reports said five people were wounded. “The police are sending massive units,” he said.