No one claimed responsibility for the blasts, but they may be linked to the Patani United Liberation Organisation (PULO), which has been an active participant in the South Thailand insurgency in Narathiwat, Pattani, and Yala.
[1][2] The bombings, drive-by shootings, and machete attacks in southern Thailand began in January 2004, and by April 2005 had resulted in over 600 deaths.
A bomb planted in a garbage bin exploded in front of a Carrefour store in Hat Yai, injuring five and causing minor damage to the building.
[citation needed] Shortly after, a bomb inside a bag exploded at the departure hall of Hat Yai International Airport, killing two, injuring 47, and causing some damage to the building.
Later, a bomb planted on a motorcycle exploded in front of the Green World Hotel in Songkhla without causing any injuries, deaths or damage to the building.