NEW : Airlines suspended all flights at Suvarnabhumi Airport after blast ; one wounded . Three people wounded at blast at Don ##bas International Airport . Government and anti - government forces exchange gunfire . People 's Alliance for Democracy has been leading protests since February .
NEW : Authorities cancel all flights at Suvarnabhumi Airport after blast ; one wounded . Three people wounded at blast at Don Muang International Airport . Pro- and anti-government protesters exchange gunfire . People 's Alliance for Democracy has been leading protests since May .