The command PRO hinted that efforts were on to arrest other accomplices in connection with the offence.
The deployment of additional personnel follows the increase in socio-economic, political and cultural activities during the yuletide.
The men were conveying 50,000 litres of suspected adulterated diesel when they were arrested.
Apprehended in Anambra, six of the suspects were said to have come from Ebonyi, while one came from Enugu.
The Nigerian Security and Civil Defence Corps (NSCDC) has intercepted a tanker laden with about 36,000 litres of adulterated diesel in Anambra.
The video alleged that NSCDC operatives were attacked and their vehicle burnt.
