Bombings inside or in the vicinity of Yangon have occurred on numerous occasions in the past.
In September 2008, a bomb exploded outside the Yangon City Hall killing 7 people and injured several others.
[citation needed] On 15 April 2010, three separate blasts occurred in front of the X2O water festival pavilion allegedly sponsored by Than Shwe's grandson[4] near to Kandawgyi Lake, where hundreds of people were celebrating Water Festival.
[5][6] Police Chief Khin Yi said that three members of Vigorous Burmese Student Warriors were responsible for the bomb blasts.
[6] Phyo Wai Aung, an engineer, was charged with alleged involvement in bombing was sentenced to death in May 2012.