The data platform WikiLeaks on Tuesday published hundreds of thousands of documents it identified as emails from Turkey's ruling Justice and Development Party (AKP).
The media organization, whose slogan is "we open governments," posted on Twitter a link to a searchable database it said contained a total of 294,548 emails and "many thousands" of attachments from 762 addresses linked to the AKP's akparti.org.tr domain.
Emails associated with that domain are used mostly for "dealing with the world" and not for sensitive internal matters, the group said on its website.
The most recent message was sent July 6, and the oldest dates from 2010. The material was obtained a week before Friday's coup attempt, WikiLeaks said.
WikiLeaks said it had verified the material and the source, and clarified that the source had no connection to the "elements behind the attempted coup, or to a rival political party or state."
WikiLeaks had announced the release of the documents on Monday morning, but then later in the day posted Twitter messages saying it was under "sustained attack," the timing of which it said suggested Turkish state involvement.
Shortly before the release of the documents it posted a message saying "we appear to have won our 24h cyberwar" and announcing the release of the document cache.