If the link doesn't work, Google "Fireball meteor lights up Bangkok skies" on BBC.com.
I guess that I should speculate on what is causing this (though I suspect that there's a literature out there somewhere that I can't find.) As the meteor enters the atmosphere, friction causes it to heat up and glow brighter and brighter. If the part of the crust that is heated spalls off, it would perhaps cause the rapid brightening burst as well as expose a cold interior. That cold interior is then exposed to the atmosphere, friction heats it up, and it spalls off again to form the second burst. The cold nucleus then heats up to form the third, and final, burst.
Rule of thumb is that "shooting stars" are about the size of a pea. So, maybe this meteor that caused the triple burst was the size of a....golf ball?? Input welcome!