At least four people were killed and more than 10 wounded in two suspected Shabaab bombings in Nairobi; one occurred on a bus and the other in the Gikomba market. Police have begun stopping vehicles with tinted windows in Nairobi following a May 13 directive by the police inspector general as part of heightened antiterrorism measures. A top US State Department official criticized Kenya’s attempts to crack down on illegal immigrants who may be Shabaab sympathizers. The US, Britain, France, and Australia have recently warned their citizens of the danger of terrorist attacks in Kenya.