They moved straight to the Customs officer’s residence and thereafter took him away along with his son.
According to the source, the bandits trailed him from his family house in Zaria city down to the estate.
Four others on the estate were later abducted by the gunmen.
The incident comes two days after bandits attacked an Abuja-Kaduna-bound train, killed eight people, injured 26, and kidnapped an unspecified number of persons.
Kaduna State and several others in the northwest and north-central regions have suffered from banditry in recent years.
The gunmen have largely targeted schools and other public facilities. Several persons have also been killed and many others injured in the incessant attacks.
Despite efforts by security agencies and the government, attacks by the armed men have continued and there are fears it might spread to other parts of the country.
While the bandits, who have since been declared terrorists by the government, initially attacked communities on the outskirts of states, they have somewhat become brazen in their renewed assaults.