1 Kings 16:7-11

Moreover, the word of the Lord through the prophet Jehu the son of Hanani came against Baasha and his household, both because of all the evil that he did in the sight of the Lord, provoking Him to anger with the work of his hands, by being like the house of Jeroboam, and because he struck it.

In the twenty-sixth year of Asa king of Judah, Elah the son of Baasha became king over Israel at Tirzah, and reigned for two years.

And his servant Zimri, commander of half his chariots, conspired against him. Now Elah was in Tirzah drinking himself drunk in the house of Arza, who was in charge of the household in Tirzah.

Then Zimri came in and struck him and put him to death in the twenty-seventh year of Asa king of Judah, and he became king in his place.

And when he became king, as soon as he sat on his throne, he killed all the household of Baasha; he did not leave a single male alive, either of his relatives or of his friends.