Six Americans were among 45 ultra-Orthodox Jews who died in a crush of Lag B’Omer observers at Mount Meron in northern Israel, by the tomb of an ancient Jewish mystic, Rabbi Shimon bar Yochai. Every year, tens of thousands throng to the area to celebrate the rabbi and to light bonfires as part of the celebrations. It is unclear what caused the stampede.

Among the dead are Donny Morris, 19, from New Jersey; Eliezer Zvi Yuzef, 26, and Menachem Knoblowitz, 22, both of New York. Yousef Amran Tauber and Yousef Kahn were also killed, ages and home states not released.