He was 87, APA reports quoting CNN. The literary giant was treated in April for infections and dehydration at a Mexican hospital.
García Márquez, a native of Colombia, is widely credited with helping to popularize "magical realism," a genre "in which the fantastic and the realistic are combined in a richly composed world of imagination," as the Nobel committee described it upon awarding him the prize for literature in 1982.
In a televised speech Thursday night, Colombian President Juan Manuel Santos declared three days of national mourning, ordering flags to be lowered to half-staff across the country.