Arroyo outlines reasons for martial law declaration in 20-page letter . The president said he was "confident that the people of this country will not allow themselves to be intimidated by those who would use force against them." The debate began as elite forces of the Philippine National Police clashed in the town of Datu Unsay with suspected followers of the politically powerful Ampatuan family , which has been implicated in the massacre , the Philippine News Agency reported Monday . House , Senate might jointly convene Tuesday , House Speaker says . At least six members of Ampatuan family arrested , ABS-CBN reports . Authorities raid at least one warehouse and ranch belonging to family .
Arroyo outlines reasons for martial law declaration in 20-page letter . The president said he was "confident that the people of this country will not allow themselves to be intimidated by those who would use force against them." House , Senate might jointly convene Tuesday , House Speaker says . At least six members of Ampatuan family arrested , ABS-CBN reports . Authorities raid at least one warehouse and ranch belonging to family .