A beloved South Bend, Indiana family and the broader Torah world are reeling after a devastating boating accident on Lake Michigan claimed the lives of two siblings, Chana Malka Zweig, 21, and her brother, Yosef Yehuda Zweig, 18.

The tragedy occurred Tuesday while the siblings were out boating on Lake Michigan. Emergency responders rushed to the scene after reports that the two had drowned. Both were pulled from the water and transported to a nearby hospital, where medical teams fought to save their lives. Despite extensive lifesaving efforts, both Chana Malka and Yosef Yehuda were pronounced dead.

The victims were the daughter and son of R’ Yehoshua Leib and Hadassah (nee Ehrman) Zweig of South Bend.

Chana Malka and Yosef Yehuda were also the grandchildren of Rav Yochanan Zweig, the esteemed rosh yeshiva of Yeshiva V’Kollel Beis Moshe Chaim in Miami Beach.

Officials have not yet released additional information about the circumstances that led to the drowning.

Levayah arrangements have not yet been announced.