Mombasa: At least four people were killed in the Kenyan coastal city of Mombasa on Sunday in an attack by armed men on a motorbike, according to medical sources.
Another eight people were wounded in the shooting, said the same source.
Earlier, the police said there had been two fatalities.
"At 8:30 pm (1730 GMT) people on a motorbike shot and killed two people and injured two others in the area of Soweto," Mombasa`s chief of police Robert Kitur told AFP.
He added that the identity of the killers was not yet known.
No one has yet claimed responsibility for the shooting.
Mombasa has been the scene of worsening unrest in recent months with a string of shootings and bombings blamed on Somalia`s Shebab rebels or local supporters.
The Al-Qaeda-linked group say the attacks on Kenyan soil are in retaliation for Kenya`s military intervention in Somalia.
On Friday night seven people were killed in an attack on a bus near the Kenyan holiday island of Lamu. Among the dead were two police officers.
Responsibility for that attack was claimed by the Shebab who said it was "ready to act or attack anywhere necessary within Kenya".