Israel's police minister warned Friday that he will not give in to any of the demands of Palestinian prisoners who are planning to launch a hunger strike next week. The strike is scheduled to begin Sunday. "No demands will be accepted ... There will be no flexibility," said Tzahi Hanegbi, the police minister, after a meeting with the police chief and the head of the prisons service to discuss the impending strike. About 4,000 Palestinians are in Israeli jails for participating in violence that broke out in September 2000. Thousands more are held in military prisons, many without being charged. The prisoners are demanding family visits without glass partitions, access to phones, an end to solitary confinement and better medical care.