Suspected rebels from Nigeria's Islamist militant group Boko Haram attacked a Chinese plant in northern Cameroon near the town of Waza, a local governor told Reuters on Saturday. Waza is 20 km (12 miles) from the Nigerian border close to the Sambisa forest, a stronghold of Boko Haram which has killed thousands in Nigeria in a five-year insurgency for an Islamist state and threatens to destabilize the wider region.