Ziauddin's career in journalism spanned 45 years according to a profile on him by Reporters without Borders.

Omar R Quraishi who worked with Ziauddin in Dawn and Express Tribune expressed his condolences.

Nasim Zehra described him as an old guard of journalism in her condolence note.

Former colleague Shaheen Sehbai spoke of Ziauddin's incorruptible spirit and ethics.

Oped editor of The News, Zebunnisa Burki said it was an end of an era.

Journalist Mazhar Abbas also tweeted about Ziauddin's contributions to journalism.

One user shared a snipped of a video interview with Ziauddin as a testament to his work.

It wasn't just journalists who were tweeting their condolenes. Former envoy to the US Hussain Haqqani also shared his condolences.

PPP Senator Krishna Kumari expressed their condolences as well.