Even weirder, the amount of followers of the account abruptly and significantly dropped upon reappearing, according to TechCrunch.
The first post following the hiatus was an animated depiction of Santa Claus presumably writing down WikiLeaks under the "Good" section of his "naughty list".
Assange's last tweet appears to have been posted on 22 December and it included an image with one of Assange's own quotes, which said, "A knowledgeable public, is an empowered public, is a free public".More news: 'Tiger Zinda Hai' races past Rs. 100 crore at Box-Office
Assange then pointed to an official tweet from the US Navy that read simple "Julian Assange".
Assange, who has been holed up in the Ecuadorian embassy in London since 2012 to avoid extradition to avoid a rape accusation from Swedish prosecutors, has long used the social media site to communicate WikiLeaks plans.
It accused Twitter of deleting Assange's account to silence him ahead of a major story.More news: Everyone is asking the same thing after the Kardashian Christmas party
The WikiLeaks founder's Twitter account mysteriously vanished from the social media platform, reportedly between 7 and 8 p.m. on Christmas Eve.
Did they raid him? Meanwhile, another account has come up claiming to be an alternative handle by Assange and started posting claims of censorship before it was suspended.
"This morning, an inadvertent keystroke by an authorized user of the U.S. Navy Office of Information's Digitial Media Engagement Team caused the trending term "Julian Assange" to be tweeted from the Navy's official Twitter account", the tweet read.More news: 12 displaced after Christmas morning fire on Far South Side