Sienna Miller and Tom Sturridge have split up.

The showbiz couple have reportedly decided to separate, more than three years after they got engaged.

The 33-year-old actress was spotted holidaying with the 29-year-old star earlier this month in Ibiza along with their three-year-old daughter Marlowe - who was born six months after they announced their engagement - although the trip was not enough to save their relationship, according to The Sun newspaper.

The news comes just two months after the 'American Sniper' star was seen without her engagement ring while at Cannes Film Festival prompting rumours their relationship could be on the rocks following what friends described as a series of ''blazing rows''.

However, just last year, Sienna - who famously starred opposite her beau in a 2013 Burberry advertising campaign - gushed about Tom's soothing personality.

She said: ''He's the perfect balance to my lunacy, which makes him sounds really boring but he's not, at all.''

It's not the first time Sienna Miller has been unlucky in love, having broken off her engagement to Jude Law in 2006 after they both admitted they had been unfaithful.

The 'Alfie' co-stars eventually rekindled their relationship although split once again in 2011, when she began dating 'Far from the Madding Crowd' actor Tom.