2 Kings 15:14-16

14Then Gadi's son Menahem went from Tirzah up to Samaria. He attacked King Shallum and he killed him. Menahem became king of Israel instead.

15The other things that happened while Shallum was king are written in a book. The book is called ‘The history of Israel's kings’. It tells about the plan that he made to kill King Zechariah.

16At that time, when Menahem came from Tirzah, he attacked the city of Tiphsah. The people who lived there refused to let him go into their city. So he killed them all. He even cut open the pregnant women.