“I am deeply saddened to learn of the death of His Excellency Tanja Mamadu, former President of the Republic of Niger,” he wrote on Twitter.
Issufu expressed his condolences to the Tanji family and the people of Niger.
According to Jeune Afrique, three days of mourning have been declared in Niger in connection with the death of the former president.
Earlier, at the age of 58, the wife of ex-President of Armenia Serzh Sargsyan died, suffering from the coronavirus infection COVID-19.