Authorities decline to comment on reasons for arrest; murder suspect held incommunicado since Thursday, sparking calls for him to be allowed to meet with his lawyer

Palestinian witnesses say Israeli settlers sought to set up illegal outpost on their land, sparking quarrel and accusing Israeli forces of standing by while man was attacked

PA health ministry, Israeli rights group say Ali Hassan Harb, 22, killed near settlement of Ariel after dispute over tent turns violent; identity of stabber not known

In West Bank town of Iskaka, 11 vehicles found with tires slashed; Hebrew graffiti on walls reads: 'Enemies live here'