JERUSALEM (AP) — The family of an Israeli-American teen believed to have been abducted in the West Bank says it has received an outpouring of support from friends and family back in the U.S.

Naftali Fraenkel is believed to have been abducted late Thursday with two other teens, Gilad Shaar, 16, and Eyal Yifrah, 19, as they were hitchhiking home from a school in the West Bank. Since then, Israel has been on a furious search for the boys, arresting dozens of members of the militant group Hamas, which Israel’s prime minister says is behind the kidnapping. The teens have not been heard from.