What does Creon decide to do after speaking with Teiresias?

The first time Creon talks with Teiresias, he decides to ignore him completely and disregard everything that he has said about the imminent future. However, he soon changes his mind and decides to actually do something about his prophecy. He goes to release Antigone from her prison, however, he is too late as she has already died, along with his son and wife.