Genesis 34:2, 24-25

When Shechem son of Hamor the Hivite, the ruler of the land, saw her, he took her and forced her to have sexual relations with him.

All the people who had come to the city gate heard this. They agreed with Hamor and Shechem, and every man was circumcised. Three days later the men who were circumcised were still in pain. Two of Jacob’s sons, Simeon and Levi (Dinah’s brothers), took their swords and made a surprise attack on the city, killing all the men there.