WASHINGTON: The United States, pressing for new movement towards a Middle East peace settlement, today [June 29] awaited the outcome of an Israeli debate on how much territory in the Sinai can be handed back to Egypt. But as a new crisis loomed between Israel and the [US] over US Middle East peace moves, Israeli Defence Minister Shimon Peres repeated Israel`s refusal to vacate two vital mountain passes in the Sinai. Meanwhile, Israel expressed its indignation ... through its newspapers over an apparent ultimatum by the [US] to withdraw from the Sinai passes or risk ... confrontation with Washington. News agencies [Meanwhile, as reported by news agencies from New Delhi,] club-swinging police waded into unarmed crowds of anti-Government sympathisers today [June 29] arresting at least 30 persons in the first known mass demonstrations under state of emergency decree. In a ... show of force, police in ... Old Delhi chased groups of 20 and 30 demonstrators ... down narrow side streets, stopping occasionally to swing at anyone in their way with heavy wooden nightsticks. The ... demonstrators took refuge in houses, shops and alleyways.