Zardari, 69, was brought to the hospital from Nawabshah, about 300-odd kilometres from Karachi, following complaints of fever and an infection, The Express Tribune reported on Tuesday.
President Zardari underwent several medical tests, and doctors are closely monitoring his condition, it said.
Associated Press of Pakistan (APP), the state-run news agency, said on Tuesday that Prime Minister Shehbaz Sharif inquired about President Zardari’s health on the telephone and prayed for an early recovery for him.
