Former President Olusegun Obasanjo has described the death of Abba Kyari, Chief of Staff in the presidency as a great sadness.

Obasanjo in his condolence letter addressed to Buhari on Saturday said Kyari’s death should be a solemn reminder to Nigerians that the fight against COVID-19 requires a collective effort.

The letter read, ” I received the news of the demise of Alhaji Abba Kyari, your Chief of Staff, over Friday night, with great sadness, as he lost the battle against the dreadful killer disease, COVID-19.

“Abba Kyari’s death must be painful to you and to his family and friends, but you can all take solace in the fact that he died in harness, in the service of his country.

“His death must be a solemn reminder to all of us that COVID-19 requires all hands on deck soberly, cooperatively, humanly, humanely, justly, equitably, fairly, consolidatedly and comprehensively to be able to fight it successfully and to get all Nigerians back to good health and healthy economy.

“God will give you and Abba Kyari’s family and friends the fortitude to bear the irreparable loss.”