The Nation learnt that the late Saudi Arabia Ambassador died in his sleep in the early hours of Tuesday.
The late Bostji was said to have returned from the Kingdom to Nigeria on Sunday evening and was planning to come to office on Tuesday when they found him dead in his sleep.
The Royal Embassy of Saudi Arabia confirmed the demise of the diplomat.
Bostaji was said to have returned to Abuja from his home country on Sunday and was planning to come to the office on Tuesday when his domestic workers found him in bed unresponsive.
He was rushed to the Nzamiye Turkish Hospital where he was confirmed dead by doctors.
“We are right now in the hospital from where we are making arrangement to fly his remain to Saudi Arabia,” a source said.
A statement from the Royal Embassy of Saudi Arabia in Abuja said: With the deepest sense of sadness and complete submission to the will of Allah, Royal Embassy announces the passing away of His Excellency, the Ambassador of the Kingdom of Saudi Arabia to Nigeria, Mr. Adnan Mahmoud Bostaji. May his blessed soul rest in peace.”