The chopper had earlier taken the Vice President to the college for the ceremony.
The Nation reports that while taking off, it could not ascend beyond the tree level, before it emitted thick smoke and landed on the same spots few seconds after take off.
The Chief of Army Staff, Lt. Gen Tukur Buratai and Chief of Air Staff, Air Marshall Sadique Abubakar, had already departed from the venue with their respective convoys, when the incident happened.
Osinbajo later left the college by road.
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