"Money laundering and terrorist financing are often internationally connected activities," the statement said.
"Financial intelligence authorities also need to be internationally organized to fight against these criminal activities.
Hence there is a need for the FIUs to co-operate with each other to exchange information.
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The Memorandum of Understanding (MOU) was signed between the Financial Intelligence Unit of Sri Lanka's Central Bank (FIU Sri Lanka) and the Anti Money Laundering Department of Central Bank of Bangladesh (FIU Bangladesh).
"MOUs will therefore, facilitate greater co-operation and co-ordination among the FIUs in the exchange of information," the statement said.
It will enable the banks to share financial information to facilitate investigation and prosecution of persons suspected of money laundering and terrorist financing.
The FIU-Sri Lanka has already entered into MOUs with Australia, India, Belgium, Malaysia, South Korea, Indonesia, Philippines, Afgha