KARACHI: Pakistan People’s Party (PPP) co-chairman and former president Asif Ali Zardari has been shifted to hospital after his health suddenly deteriorated. Media reports said that Asif Ali Zardari is under treatment at Zia-ud-Din Hospital in Karachi where doctors have conducted his different medical tests. The PPP Chairman Bilawal Bhutto Zardari has arrived in Karachi from Islamabad while ex-president’s daughter Bakhtawar Bhutto has also reached Karachi from Dubai.