Dalsan Radio has learnt that a Dutch citizen who happened to be the one of the receptionist of the hotel was the female suicide bomber who carried out the attack.
More than 25 people were killed including members of parliament and scores of others among them senior government officials wounded.
Credible source has revealed to Dalsan saying more investigations are going on.
Meanwhile the staffs of the ill-fated hotel were arrested by Somali Intelligence to help in the investigation.