Algeria has warned it will crack down severely on Islamic militants who refuse a government amnesty, the nation's interior minister said. Algerians voted overwhelmingly last week to approve a peace plan granting amnesty to many of the country's Islamic extremists, an attempt to turn the page on a brutal insurgency that has left an estimated 150,000 dead. Interior Minister Noureddine Yazid Zerhouni said late Sunday that security services know that "recalcitrant terrorists" will refuse to hand in their weapons. The amnesty offer concerns about 800 to 1,000 militants, Zerhouni said.Those who refuse the offer will face an "even more organized crackdown," he said, without elaborating. But for years, security forces have been hunting down militants who have rejected previous amnesty offers, hiding out in isolated mountains and brushlands.