Take the bike back to where you purchased it since this is a new model Have them take pictures and send in for shot at warranty coverage with Fisher. To me it looks like you landed very hard on the saddle during a jump. I broke a saddle like that once - not a seat tube. Boy did I have bruises. Fisher will have to make the decision as to whether it is impact damage or warranty. They usually try to cover most broken frames. I have never been able to get the frame covered when the break is behind the head tube - due to damage from missing a landing on a jump.