An explosion on a busy street in Nairobi, Kenya, today killed at least one person and injured about six others, police said.
Police said the explosion, at about 8 am (9am Irish time), appeared to be a suicide bombing.
The blast came after weeks of violence by a criminal gang called Mungiki, notorious for beheading its enemies. More than 30 people were killed by police last week in raids on a Nairobi slum which is a stronghold of the Mungiki, who have distributed leaflets calling for an uprising.
Tribal and criminal violence traditionally flares ahead of elections, and a presidential poll is due in December.