Seven die in Nigerian Air Force Abuja plane crash
The Nigerian Air Force plane had reported engine failure, the military spokesman tweeted.
The plane was on the way to Minna, in the northern state of Niger to try to rescue 42 people who had been kidnapped.
The chief of air staff has ordered an immediate investigation.
In a series of tweets, the air force asked the public to "remain calm & await the outcome of investigation".
"This is to confirm that a Nigerian Air Force (NAF) Beechcraft KingAir B350i aircraft crashed while returning to the Abuja Airport after reporting engine failure enroute Minna. First responders are at the scene. Sadly, all 7 personnel on board died in the crash," Air Vice Marshal Ibikunle Daramola said. ■