Communities in northern Ghana give refuge to up to 4,000 people fleeing rebel violence in Burkina Faso, but they now fear that some former armed vigilantes may be amongst the refugees. Somalia's government says it has killed 130 al-Shabab militants, including top commanders, with regional and international assistance. Are the strongholds of the jihadists being whittled away by successful offensives? And the United States’ ambassador to the UN, Linda Thomas Greenfield, has just concluded a trip to Africa and tells us how the US plans to forge stronger diplomatic ties across the continent.