In the early hours of Friday morning joint security services say they rescued two people who were abducted during an attack on a US convoy in the south-eastern Nigerian state of Anambra on Tuesday.
They are thought to be physically unharmed.
The police spokesman Ikenga Tochukwu did not give the identities of those who have been rescued, but did say that "operations are still ongoing and further details shall be communicated".
Seven people died in the attack, with Washington saying no US citizens were in the convoy, which was travelling in the state plagued by violence and a separatist insurgency.