Israel says it will show other countries evidence that Syria was involved in Friday's suicide bombing that killed four Israelis in Tel Aviv. Israeli officials say Foreign Minister Silvan Shalom will preset evidence to countries on the U.N. Security Council and E.U. ambassadors on Monday. On Sunday, Israeli Prime Minister Ariel Sharon accused Syrian-based elements of the Palestinian group Islamic Jihad of being behind Friday's attack. Syrian officials denied any role. Mr. Sharon also stressed Sunday that there can be no progress in the peace process until the Palestinian Authority cracks down on militant groups. In other developments Sunday, Israeli lawmakers approved the formation of a Justice Ministry unit to investigate Israeli extremists calling for violent opposition to Israel's planned pullout from the Gaza Strip later this year.