The press office for the Turkish Embassy in Washington has since tweeted a series of statements, attributed to Erdogan.
And a member of Turkey's ruling Justice and Development Party (AKP) said on BBC that Erdogan is "in the country. He is monitoring."
Here are some of the unsubstantiated locations where Erdogan has been rumored to be:
Marmaris
Reports emerged that Erdogan had been on vacation in the Turkish Riviera port town of Marmaris at the time of the attempted coup:
Germany
Or rather, a U.S. military source told NBC News that Erdogan was trying to get into Germany.
Tehran
Well, that's a route. Here comes this report, attributed to the official news agency of Iran.
Istanbul
Isaac Stanley-Becker contributed to this post.