JDG 20:31

31 When the men of the tribe of Benjamin came out of the city to fight against them, the Israeli men retreated away from the city, and the men of the tribe of Benjamin pursued them. The men of the tribe of Benjamin killed many Israelis, like they had done before. They killed about 30 Israelis. They killed some in the fields, and they killed some on the road that went to Bethel and on the road that went to Gibeah.