Is Muji owned by Uniqlo?

I'm curious to know if there's any connection between Muji and Uniqlo. Are they owned by the same company or are they separate entities? I've noticed that they both have a similar minimalist aesthetic and offer a wide range of products, so I'm wondering if there's a LINK between the two brands. Can you clarify if Muji is owned by Uniqlo or if they're simply two separate companies with similar styles?