The News Agency of Nigeria (NAN) reports that two policemen were killed by gunmen during the incident.
Kyari said the operation was carried out by combined team of IRT, Counter Terrorism Unit (CTU) and the Kaduna Police Command deployed by the Inspector-General of Police.
“We rescued the two Americans and two Canadian citizens, three males and one female in fairly good health around 7:30 a.m. today, Jan. 20.
“Those rescued are; Nate Vangeest and Rachel Kelley, Canada, as well as John Kirlin and Dean Slocum, U.S.
“The victims have been handed over to the American Embassy in Abuja for Medical attention and other immediate needs,’’ Kyari said.