Turkish President Recep Tayyip Erdogan speaks on CNNTurk via a Facetime call on July 15. (Burak Kara/Getty Images)

Amid an attempted military coup in Turkey, one key player's whereabouts are still murky: President Recep Tayyip Erdogan.

The president addressed the nation using FaceTime, describing the events as "an attempt at an uprising by a minority within our armed forces" and called on supporters to take to the streets.

Erdogan had spoken from "a secure location," a senior government official has said. That secure location remains a mystery.

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.