Fujimori, who was accused of corruption and human rights abuse, was pardoned by former Peruvian President Pedro Pablo Kuczynski in December on humanitarian grounds over his advanced and incurable illness because prison conditions put Fujimori's life at risk. The pardon sparked protests across the country and prompted calls on the Peruvian authorities to reverse the decision. On Wednesday, the court ruled to annul the pardon.
Earlier on Wednesday, the ex-president’s son Kenji Fujimori wrote on Twitter that he was riding in an ambulance car with his father.
Fujimori, who suffers from cancer, served as the president of Peru from July 1990 to November 2000. Defeating the militant Shining Path group has been one of the achievements of his presidency. Fujumori’s administration was, however, marred by embezzlement of public funds, bribing businessmen and journalists, and such human rights violations as extrajudicial killings of the insurgents and forced sterilization of indigenous peoples. Fujimori was sentenced to jail in 2009.