Nigerian motorbike gangs in deadly village raids

Dozens of residents have reportedly been killed by gunmen who raided several communities in the Anka and Bukkuyum areas of Nigeria's north-western Zamfara state.The UN says there have been airstrikes on a refugee camp in Tigray, Ethiopia which have killed three people and wounded four others.Plus, we speak to UNESCO World Heritage Centre's new boss, he talks abouts his goal to put Africa's natural beauty on the World Heritage Map.