At least 30 people were killed when extremist sect Boko Haram attacked three villages in north-east Nigeria, dpa cited local news agency NAN as reporting Wednesday. Insurgents in military-type pickup trucks and on motorcycles attacked the villages of Attagara, Amuda and Ngoshe in the Gwoza local government area in Borno state on Tuesday, the agency quoted witnesses as saying. Numerous houses were set alight.