Washington: Pakistani Prime Minister Nawaz Sharif was today heckled by a protester who demanded to free the restive Balochistan province where activists say army is engaged in abductions, torture and killings.

As Sharif began delivering his address at the US Institute of Peace, a prominent independent think-tank here, a protester raised slogans including "free Balochistan", "stop war crimes in Balochistan", besides calling him a "friend of (Osama) Bin Laden".