Are the good ol' days of One Direction officially over? Despite the initial cordiality, the Twitter feud between Zayn Malik, Louis Tomlinson and Naught Boy has Directioners torn over which side to take.

As previously reported, Zayn Malik is currently working in the studio in London with British producer Naughty Boy for a solo debut. Since then, One Direction member Louis Tomlinson has taken to Twitter to show his disapproval at the pairing.

Remember when you were 12 and you used to think those Mac filters for your pictures were cool haha ! Some people still do HA!

— Louis Tomlinson (@Louis_Tomlinson) May 6, 2015

Zayn Malik responded to the tweet in kind, which first addressed a photo with Malik and Naught Boy.

@Louis_Tomlinson remember when you had a life and stopped making bitchy comments about mine ? — zaynmalik (@zaynmalik) May 6, 2015

Since the feud began, the hashtag #TOMLINSONSLAYAGAIN began trending on Twitter, with One Direction fans seemingly siding favorably with Tomlinson rather than Zayn Malik.

"Don't know why I'm being attacked for defending myself," tweeted Malik after Tomlinson's insult. "People got it twisted! I love my fans. Every single one of you."

But some fans don't seem to agree.

"I'm sorry but what fans?" tweeted a One Direction fan. "You're a normal 22-year-old boy. Normal people don't have fans. We're of 1D. I think you're wrong."

Interestingly enough, Harry Styles, Niall Horan and Liam Payne have chosen to stay out of the Twitter feud. But it seems clear that the old days of One Direction is over.