The US ambassador to Israel has condemned a siege by Jewish settlers on the home of an American Palestinian family in the occupied West Bank as a "horrific act of terror." Mike Huckabee made the remarks on Thursday in response to the incident in the village of Qusra. The Israeli army intervened on Wednesday after a US request, Huckabee said, but soldiers failed to remove the settlers. Huckabee, an evangelical Christian pastor who has previously embraced Israeli settlements, denounced the actions of the settlers besieging the home. The family is American Palestinian, and the incident has drawn sharp criticism from the US envoy.