Witnesses said that cleaning women who arrived at a city square to clean were killed when explosives inside a plastic bag detonated. Three workers were reportedly killed on the scene, others were injured. Some of those injured were described as in critical condition.
A large number of ambulances and security forces are present at the site of the bombing.
No claim of responsibility has been made for the bombing as yet.
The al-Shabaab organization is suspected, given they are currently in conflict with the central government of Somalia.