The opening speech of Princess Akiko, niece of Emperor Akihito, which she was making at the opening ceremony of the 'Miyasama Ski Competition' in Sapporo, ended with an explosion.
According to 'Novaya Gazeta', a sound similar to an explosion was heard immediately after the speech of Akiko. At the moment there is no precise data about what could it be: the police are verifying it, interviewing eyewitnesses.
There are reports about a detained man with a steel pipe in his hand.
