Read: Teacher recalls how he survived Mandera al Shabaab attackAtleast 45 al Shabaab militiamen were spotted crossing into the country on May 29. Four police officers were killed on Monday after suspected al Shabaab militants attacked their vehicle using a rocket-propelled grenade. Read: Seven police officers killed in Lamu al Shabaab blastThis is the third attack involving Makkah bus which plies the Nairobi-Mandera route. Read: Muslims shield Christians from al Shabaab terrorists in ManderaIn 2014, a bus was attacked near Mandera by al Shabaab militants who killed 28 non-Muslims travelling to Nairobi for the Christmas holidays. Five officers were injured in the incident in Dabasity, Mandera county, that took place while they escorted a Makkah bus.

Source: The Star June 20, 2016 08:44 UTC