If your talking about the Marine M-1 that was on the news the other day.... they did not destroy the tank.
The tank got hit by what a reporter said was an RPG, but who knows if that was accurate. The crew drove the tank back to friendly forces, a small fire (a duffel bag stowed on the outside of the turret was burning) was present on the exterior of the tank, and parked the tank with friendly forces.
The crew exited the tank, with three of the crewmen wounded (one broken arm, and the other two had shrapnel wounds, one with a serious face/eye wound). The Tank was not disabled and brought its crew home alive.