Nigerian authorities say three servicemen have been killed in a military helicopter crash in the restive northeast.
The crash happened late on Thursday in Yola, the capital of Adamawa, which is one of three states that has been under emergency rule since May last year.
The military said the aircraft involved was a ground attack helicopter on an armed patrol.
"The crew of three was lost in the ill-fated accident," a statement said on Friday, adding that an investigation will be carried out.
There was no immediate indication that the armed Islamist movement was responsible for the crash, though there has been an increase in Boko Haram activity in the state in recent weeks.
Thursday's chopper crash near a hall of residence at the Modibbo Adama University of Science and Technology caused panic among students, as weapons said to be on board apparently exploded.
"We heard a huge thundering sound which made us rush out of the hostels, thinking the school was under Boko Haram attack," said one student, Harisu Abdulaziz.
Another student said there was chaos as residents at the hostel tried to flee but were prevented by soldiers guarding the gates.
The university has been under military protection after a spate of Islamist attacks against schools in the region.
