46-year-old Israel Halberstam of the Borough Park section of Brooklyn was critically injured yesterday when a pipe bomb exploded as the Hassidic Jew was getting into his car. Halberstam saw a suspicious bag under the driver side door of his minivan and touched it with his foot causing the device to detonate. His foot was severed in the blast and he was severely burned in different parts of his body. Police officials said that there is no evidence that the bomb was the work of a terrorist group or that the attack was related to the current war of terror against Israel.