Sponichi reports that a bomb threat for Sapporo Dome was found at 2-chan (a popular Japanese bulletin board) at around 1:30pm today. The City of Sapporo contacted the authorities and Hokkaido Police and the Nippon Ham Fighters' organization did a sweep of stadium. Nothing suspicious was found.
According to the police and the Nippon Ham Fighters, the 2-chan messages included sentences like "I will blow up Sapporo Dome!" and "Cancel tomorrow's games!"
The Final Stage of the Climax Series is set to begin on Wednesday. About 350 people (players, press, team staff) were at Sapporo Dome today; practices were held as usual.
A similar bomb threat was made for Seibu Dome just before the start of the First Stage of the Climax Series.
Source: Sponichi 10/16/2012
UPDATE 10/18 @ 9:48am - Hokkaido Police and the Nippon Ham Fighters' organization did a sweep of Sapporo Dome on Wednesday morning and found no suspicious items. Source: Sponichi 10/18/2012