WikiLeaks said it had won a "24h cyberwar" to successfully publish a database containing 294,548 emails, along with thousands of attachments, from 762 mailboxes it claims belong to Turkish president Recep Tayyip Erdogan's ruling Justice and Development (AKP) party, CNBC reports.

The emails came from AKP's primary domain, "akparti.org.tr", with the most recent emails sent July 6, 2016 and dating as far back as 2010, the leaks website said.

"It should be noted that emails associated with the domain are mostly used for dealing with the world, as opposed to the most sensitive internal matters" WikiLeaks said on its website. It added that the material was obtained a week before Turkey's attempted coup and that its scheduled publication was brought forward in response to "the government's post-coup purges."

The coup in Turkey began late on Friday, July 15 when rebel military forces seized control of key positions but encountered stiff resistance by elements loyal to Erdogan's elected government. Erdogan himself was travelling at the time of the coup and hundreds were reported to have been killed as members of the public battled with rebel soldiers.

WikiLeaks said it had verified the material on the database as legitimate.

"We have verified the material and the source, who is not connected, in any way, to the elements behind the attempted coup, or to a rival political party or state," WikiLeaks said. On Sunday, WikiLeaks announced on Twitter that it would release more than 100,000 documents on Turkey's political power structure, CNBC says.

WikiLeaks said on Wednesday, July 20 morning Asia time that access to its site, and the database, was blocked in Turkey.