Judges 9:42-45

The next day the people went out to the fields. This was reported to Abimelech. He took his troops, divided them into three companies, and placed them in ambush in the fields. When he saw that the people were well out in the open, he sprang up and attacked them. Abimelech and the company with him charged ahead and took control of the entrance to the city gate; the other two companies chased down those who were in the open fields and killed them. Abimelech fought at the city all that day. He captured the city and massacred everyone in it. He leveled the city to the ground, then sowed it with salt.