Grenade Attack Kills Assailant In Nairobi, Kenya, One Day Before Clinton's Visit

Early reports from the Associated Press suggest that the assailant was attempting to throw the grenade at a group of soldiers outside of a military base, but was killed himself when the explosive went off too soon. Nine bystanders were injured, and an investigation into the incident is ongoing.

Nairobi has suffered a string of fatal attacks over the past year, many of which are tied to the Islamist terrorist group al-Shabab. The insurgents, based in neighboring Somalia, and their sympathizers have ramped up attacks in Nairobi following Kenya's decision to send troops into Somalia to combat and contain al-Shabab.

No group has yet claimed responsibility for Friday's attack.

Clinton's visit is intended, among other things, to strengthen the security ties between Kenya and the United States. Al-Shabab and related militant movements are expected to be a topic of discussion during Clinton's Saturday meetings with Kenyan President Mwai Kibaki and Prime Minister Raila Odinga.