http://www.the-star.co.ke/news/2016/06/20/al-shabaab-kills-four-police-officers-injures-five-in-mandera-bus_c1372383

Al Shabaab kills four police officers, injures five in Mandera bus ambush

A file photo of passengers being frisked before boarding Makkah Express bus. Photo/STEPHEN ASTARIKO Al Shabaab kills four police officers,…