He was riding his power bike when the crash occurred.
Yusuf was admitted at an emergency ward at Cedarcrest Hospital in Abuja, the nation’s capital.
Days later, he was flown abroad for further medical treatment and returned to Nigeria in February, 2018.
However, Yusuf’s state of service and place of primary assignment (PPA) was not disclosed.
The president’s son bagged his Master’s Degree in the United Kingdom in July 2016.
He and Zahra graduated from the University of Surrey, Guildford.