Two tourists were injured after a fire ripped through bars in a packed tourist destination. Hundreds of revellers and bar girls were drinking in notorious Walking Street in Pattaya, Thailand, when there was a ''large explosion'' just after 10pm.Flames engulfed dozens of bars in a plaza area - sending girls in high heels screaming into the street as tourists fled in panic. One woman was heard saying ''oh my god, what's happening'' as sparks flew into the street and flames stretched into the night sky.