Wajid, who was considered close friend of former prime minister Zulfiqar Ali Bhutto and his daughter Benazir Bhutto, was under treatment in London.

PPP leader Sherry Rehman, in a tweet, expressed sorrow over his sad demise and that Wajid Samsul Hasan spent a lifetime of devotion to democracy, human rights, free press and the PPP.

Heartfelt condolences to his family and the broader civil society community he was deeply involved with, she added.

Wajid was a veteran journalist, who had been associated with the profession for over 40 years. He was also a close aide of former prime minister Benazir Bhutto and had served as Pakistan's high commissioner to the UK during the PPP's tenure.

Condolences and tributes poured in for the deceased’s soul.

PPP chairman Bilawal Bhutto Zardari, in his tweet, said that he was an immense source of guidance for him.

“He was a brave man who held to his convictions and has stood by three generations of our family,” Aseefa Bhutto said in a tweet.

Member of Parliament for Gillingham and Rainham, Rehman Chishiti, expressed sorrow over his sad demise. He also shared a picture of him with Benazir Bhutto in his tweet.