1 Kings 16:15-18

15In the twenty-seventh year of Asa king of Judah, Zimri reigned in Tirzah seven days. The army was encamped near Gibbethon, a Philistine town.

16When the Israelites in the camp heard that Zimri had plotted against the king and murdered him, they proclaimed Omri, the commander of the army, king over Israel that very day there in the camp.

17Then Omri and all the Israelites with him withdrew from Gibbethon and laid siege to Tirzah.

18When Zimri saw that the city was taken, he went into the citadel of the royal palace and set the palace on fire around him. So he died,