A tradition conserved among the Jews of Djerba nearby states that the community was built of exiles after the Siege of Jerusalem in 597 BCE who had joined earlier Jews living there, that the el Ghriba Synagogue has an equally ancient date, and that some of this community assisted the Phoenicians in establishing Carthage.[7]

https://en.wikipedia.org/wiki/History_of_the_Jews_in_Carthage

sources describe and criticize the Carthaginians as engaging in the practice of sacrificing children by burning.[12]

https://en.wikipedia.org/wiki/Punic_religion#Sacrifice_and_dedications