Updated

Five of the 20 people killed in a suicide bombing on a Jerusalem bus were American citizens, a U.S. Embassy official said Wednesday.

The American victims of Tuesday's blast included Mordechai Reinitz, 47, and his son, Yitzhak, 18. They were residents of the Israeli coastal town of Netanya (search) and had dual Israeli-American citizenship, said the embassy spokesman, Paul Patin. Their hometown in the United States was not immediately known.

Two other American victims were Goldie Taubenfeld, 43, and her 5-month-old son, Shmuel, who were visiting from New Square, N.Y., Patin said.

About 50 mourners attended a funeral for Taubenfeld and her son in Jerusalem on Wednesday.

"We mourn her brutal murder, and the loss of our beloved Shmuel," the Taubenfeld family said in a statement released at a news conference in Pearl River, N.Y.

Taubenfeld and her husband, Moishe, had 13 children. New Square is a tightly knit community of 4,700 Hasidim in New York City's northern suburbs.

Shmuel was the youngest child. The oldest is 21.

Moishe Taubenfeld was with his family in Jerusalem, but was not riding with them on the bus when the blast occurred.

The fifth victim was identified as Tihilla Nathanson, 3, from Monsey, N.Y.