The branch manager of a commercial bank in Abuja, the nation's capital, has been detained by the Nigerian agency that looks into financial crimes for reportedly refusing to load ATMs with cash despite having the newly designed banknotes in the vaults.

Nigeria just underwent a currency makeover, but the transition has not gone as planned due to a lack of new notes.

This has sparked resentment and caused unplanned protests at banks. Friday is the last day to utilize old currency.

On Monday, officers from the Economic and Financial Crimes Commission (EFCC) stormed the bank and whisked away the operations manager for questioning.

It said the bank had 29 million Naira ($63,000; £52,000) of the new banknotes in its vaults - which officers ordered to be loaded on ATMs.

It's unclear if the arrested bank manager has commented on the accusation, but the commission said some banks were "sabotaging government’s monetary policy".

EFCC Arrests Operations Manager of a Commercial Bank for Hoarding New Naira Notes in AbujaAn Operations Manager of a leading Commercial bank in Abuja Central Area was today, February 6, 2023, arrested by operatives of the Economic and Financial Commission, EFCC,... pic.twitter.com/nP2rbgNTOc— EFCC Nigeria (@officialEFCC) February 7, 2023