How does creon decide to punish antigone

By sentencing her to death through starvation and exposure to uncomfortable cave temperatures and scary cave denizens, through having her

walled

up with a limited food supply in a remote cave, is how Theban King Creon punishes his niece and intended daughter-in-law Antigone for having treasonously disobeyed his law against non burial of the disloyal Theban dead.