What incident prompted Tiresias to approach Creon and attempt to get him to see the error of his ways

Teiresias intervened in King Creon's punishment to the people of Thebes by telling him that the royal family will suffer the same fate. However, King Creon ignored his words and rather insulted Teiresias. Because of this, the blind councilor left the King.

The incident that propted Teiresias to approach Creon and to attempt to get him to see the error of his ways, Teiresisas offers a sacrifice to the gods.