Facebook declares its founder Mark Zuckerberg dead
"For a brief period today, a message meant for memorialized profiles was mistakenly posted to other accounts," a Facebook spokesperson told.
"This was a terrible error that we have now fixed."
Media reports indicated that some two million errant memorials were posted on profile pages.
Even Facebook co-founder and chief executive Zuckerberg was memorialized in a message at his profile page expressing hope that people who loved him would take comfort in posts people shared in tribute to his life.
"Poor Mark," read an @JudiD23 tweet that included weeping face emojis.
"Couldn't happen to a nicer guy."
The social network apologized and said it worked as quickly as possible to correct the problem.
Facebook Live feature lets people broadcast video in real-time at the leading social network.
The mistaken memorial notices contained links to forms that can be submitted to have people's accounts at the leading social network modified into online memorials after they die.
Part of the process is showing proof of death.
Some wondered whether the mishap was a botched test promotion of the feature, rather than a software glitch.