ISLAMABAD: Prime Minister Nawaz Sharif is likely to meet former president Asif Ali Zardari in London either today or tomorrow. The prime minister has reached London ‘for medical check-up’ amid critical political situation back home. His spokesperson has already denied any scheduled meeting with the former president. While Pakistan Tehrik-e-Insaaf (PTI) and Jamaat-e-Islami (JI) have demanded resignation of the prime minister following Panama leaks, it is Zardari who has the final say whether PPP should join the chorus. Sources said the prime minister sent confidential messages to the former president requesting him to have a meeting somewhere away from the public or media glare.