Two children among six people wounded in Somalia car bombing
Just 70 attacks were reported by ships in the first nine months of this year, compared with 233 incidents in 2011.
International intervention and new security measures are deterring pirates, the IMB adds.
But the organisation warned seafarers to remain vigilant in the waters around Somalia.
Captain Pottengal Mukundan, the director of the IMB, said: "It
An explosion took place in the area known as Tododa Geed opposite the Noor Doob Hotel, which is close to the presidential palace of HirShabelle state which is protected by AU forces.