Daisanji train bombing

The Daisanji train bombing was a bombing of a Shihaisha commuter train from Daisanji to Bumisu. The bombing killed 23 people both in the train and in the house the train hit after it derailed from the bombing, narrowly missing a larger danchi complex. The bombing was not suspected as a terrorist attack first as the damage caused from the bomb was substantial compared to the damage of the crash. It was initially treated as a derailment amongst growing tensions of other terrorist attacks because of the short time period since the deadly Shiroku Expo 2012 Closing Ceremony bombing.

On the 9th of January, a day after the terrorist attack, investigators announced that it was an official terrorist attack and that the perpetrators of the Shiroku Expo 2012 Closing Ceremony bombing released that they committed this act of terror, only less than a month than the original attack. The death count became finalised at 23, with 20 deaths being from the train and 3 from the house that was hit.

The previous December had been one of the busiest months for terrorist attacks, with 7 attacks being performed over December and carrying on into the new year with the train bombing. Because of this dramatic rise in terrorist attacks an emergency meeting was called of the Allience Security Council to discuss the attacks in that time and to find the perpetrators for all of them (not counting this attack, but it was performed as the committee was in session).

The Incident
The train started from Daisanji to the smaller gambling city of Bumisu. The train derailed approaching a turn in the tracks which runs parallel to a commuter road. The derailment sent the train across the street parallel to the tracks and crashed into a small house where 3 of the victims of the attack died. The train narrowly missed a much larger danchi complex which would have increased the death toll largely. The attack was originally thought to have been a derailment with no terrorism connections.

Investigation
The day after the attack on the 9th of January, the investigation released that at 6 AM local time (UTC +9), investigators of the derailment found explosives on the rail of the tracks, underneath the train. Suspicions lead to the thought that it was a follow-up attack by the same perpetrators who committed the Shiroku Expo 2012 Closing Ceremony Bombing in the December before the attack also in Shihaisha. This added onto the previous 3 attacks perpetrated by the suspect group in the Riyadh Islamic Federation, Kaisan and again in Shihaisha. The investigations into those 3 attacks had been already under-way when the attack occurred and the investigation into the string of attacks lead to the conclusion that Costa Palma was responsible.

Aftermath
With Costa Palma being found responsible for the string of bombings over the December. Shihaisha proposed Alliance Security Council sanctions against Costa Palma, starting on the 9th of January and coving all the attacks across Kaisan, Riyadh Islamic Federation and Shihaisha.