According to a report by CNBC, the 73-year-old scientist and tech entrepreneur was scheduled to participate in a World Business Forum event in the Mexican capital’s Santa Fe neighbourhood.

A report by TMZ noted that Wozniak completed his speech at the event but later informed his wife that he was “feeling strange.”

His wife insisted that he sought medical attention. While the details remain unclear, TMZ suggested that Wozniak might have suffered from vertigo, a condition characterized by dizziness and balance problems.

In 1976, Wozniak founded the fledgling Apple Computer company, along with his more famous business partner, Steve Jobs, the acclaimed investor and longtime Apple CEO who died in 2011.

Their business pioneered personal computing and went on to be the world’s most valuable company, known for the design and functionality of a range of consumer electronics, including laptop and desktop computers, and the iPhone mobile phone.