1 Kings 16:15-20 NLT

15 Zimri began to rule over Israel from Tirzah in the twenty-seventh year of King Asa's reign in Judah, but he reigned only seven days. When the army of Israel, which was then engaged in attacking the Philistine town of Gibbethon,
16 heard that Zimri had assassinated the king, they chose Omri, commander of the army, as their new king.
17 So Omri led the army of Israel away from Gibbethon to attack Tirzah, Israel's capital.
18 When Zimri saw that the city had been taken, he went into the citadel of the king's house and burned it down over himself and died in the flames.
19 For he, too, had done what was evil in the LORD's sight and followed the example of Jeroboam, continuing the sins of idolatry that Jeroboam had led Israel to commit.
20 The rest of the events of Zimri's reign and his conspiracy are recorded in The Book of the History of the Kings of Israel.