Apparently Liam Payne and Niall Horan are feuding

It appears that Liam Payne and Niall Horan are feuding. And we're not too sure why.

Fans have noticed that Niall has apparently deleted recent photos of himself and Liam off Instagram. He has kept some, though, like this birthday post for Liam!

Niall also UNFOLLOWED Liam on Instagram. It's hard to know whether this goes both ways as Liam doesn't follow anyone besides his girl Cheryl.