Katie Holmes and Jamie Foxx split

Katie Holmes and Jamie Foxx. Photo / Getty

Katie Holmes and Jamie Foxx have reportedly split.

The high-profile duo - who have always tried to keep their relationship low-key - are said to have called time on their romance, having gone public with their love in September last year.

Katie, 39 - who has a 12-year-old daughter called Suri with ex-husband Tom Cruise - instigated the split, according to RadarOnline.

Katie Holmes and Jamie Foxx attend the Clive Davis and Recording Academy Pre-GRAMMY Gala and GRAMMY Salute to Industry Icons Honoring Jay-Z on January 27, 2018. Photo / Getty

The Hollywood stars were romantically linked to each other for the first time back in 2013, but the pair subsequently spent years insisting that they were merely just good friends.

However, the former 'Dawson's Creek' actress and Jamie, 50, finally went public with their relationship in 2017, when they were pictured holding hands while walking along a beach.

And prior to their split, it was suggested that the couple were both becoming increasingly comfortabale with the interest in their romance.

A source said: "They're starting to be more comfortable about their relationship. They'd both been in public relationships before. They care about each other a lot and they tried to stay as quiet as possible because they didn't want to ruin that ... Jamie brings a lot of joy and happiness into her life. They've definitely become more serious."

Despite this, Katie - whose divorce from Tom was finalised in 2012 - continued to regard Suri as her first priority.

The insider added: "She's an amazing mom. She'll choose her family over him any day ... When they're together it works. When they're not, they're on their own. It's what works for them ... Katie found happiness with Katie first.

"She's worked her ass off since the divorce and she's finally gotten to a place where she's made a name for herself and can be her own person. She's back to her old self and it's great to watch."