Alternative asset management firm Duet Group has agreed to invest approximately US$18.6 million in Kenya-based lender Fidelity Bank. Fidelity Bank intends to use the financing to improve its capital base and expand regionally. The bank is looking to double the size of its branch network from 14 locations predominantly in Nairobi and Mombasa to 28 locations across East Africa by 2018. The transaction is subject to regulatory approvals.