Nagaland Police on Friday afternoon seized a total of 12 smuggled pigs at 3rd Mile, National Highway 29 in Dimapur.
The pigs were carried from Balijan in Assam on a pick-up truck.
Of the total pigs, eight were found dead.
Classical Swine Fever is suspected as a cause of death.
According to Dr K N Zubemo Humtsoe, in charge of the District Veterinary Hospital, a pickup truck, carrying 12 pigs were intercepted by the police at 3rd Mile (NH 29).
He further said that the police arrested four persons and investigation was on.
Eight of the pigs were found dead at the time of the confiscation, while another died at the district veterinary hospital.
Post-mortem pointed to suspected Classical Swine Fever as the cause of death.
Formalities were underway to dispose of the dead pigs, while the live pigs will be quarantined for seven days for observation.
“Serum samples will be collected from the live pigs and send to the laboratory in Kohima for confirmatory diagnosis,” he said.