Transport Tycoon Forums

I've been having a bit of a battle over one of my towns in my current game, where an AI attempted---nearly successfully---to destroy it. It went from >5000 to 354, with only a few buildings and the roads I had built myself. Does anybody know what AIs do this, so I can stop_ai the offender?

EDIT: It could be OtviAI given that it had really low ratings in that town, but I've never seen that behavior from it before.