Suspected Boko Haram gunmen have shot dead 29 farm workers as they tilled their fields in a village in the remote northeast. The source at police headquarters for Borno state, in the heart of the insurgency, said around 10 more people had been wounded in Wednesday's attack on Chukku Nguddoa, in which most of the village, including its grain store, were razed. Bomb attacks are growing more sophisticated, including two on the capital Abuja last month, and massacres of villagers in the area where Boko Haram is based are an almost daily occurrence.