CHICAGO: US Special Representative for Afghanistan and Pakistan Marc Grossman said that some differences exist with Pakistan and it would take time for the issues to be resolved, DawnNews reported.

Talking to journalists after the meeting between President of Pakistan Asif Ali Zardari and United States Secretary of State Hillary Rodham Clinton, the US envoy said that some difference remain between the two countries, however the process of negotiations between the two continue and efforts are being made  for the resolution of contentious issues.

He added that terrorism is a mutual problem that needs to be jointly fought against.