President Zardari underwent several medical tests, and doctors are closely monitoring his condition, it said.

He had gone to Nawabshah to offer Eid prayers on Monday and before that held a meeting with his party leaders on Sunday, according to local media reports.

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 telephone and prayed for an early recovery for him.