There was a fire outbreak at First City Monument Bank, located on Murtala Mohammed Road in Ilorin, the Kwara state capital, on Wednesday afternoon.
The fire outbreak occurred at about 3.20 p.m.
Customers and staff of the bank were seen scampering for safety following the fire incident.
The timely arrival of the state fire service personnel at about 3.28 p.m saved the situation.
Residents in the area first noticed thick smoke emitting from the back of the bank building.
The fire, according to sources within the bank, started in a location close to the toilet inside the bank.
Banking services were suspended as officials pleaded with customers to come on Thursday.