A family source who confirmed the development said that the duo were kidnapped on Monday night on their way to Kaduna from Abuja.
According to the source, the abductors are demanding 10 million ransom to release them.
It was learnt that the driver of the former minister was shot on his left hand by the gunmen.
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Mrs Laurentia served under former president Goodluck Jonathan. She hails from Kaduna state.