Facebook founder and CEO Mark Zuckerberg apologized Tuesday after facing criticism for his virtual tour of devastated Puerto Rico a day earlier.

Zuckerberg said his goal was to "show how VR can raise awareness and help us see what's happening in different parts of the world," touting that one of the most powerful of effects of virtual reality is its ability to evoke empathy.

"I also wanted to share the news of our partnership with the Red Cross to help with the recovery, reading some of the comments, I realize this wasn't clear, and I'm sorry to anyone this offended," Zuckerberg said in a reply message from a Facebook user who thanked him for sharing.

Zuckerberg made headlines Monday after displaying Facebook's new "Facebook Spaces" application on his page, an app that allows users to take virtual-reality-style tours as their avatar look-alike. Twitter users and media outlets accused the media mogul of exploiting a disaster to promote Facebook's latest technology.