Rihanna has sparked rumours her romance with Chris Brown is over for good after issuing a warning to fans about deceptive men.

Rihanna and Chris split after he assaulted her in 2009, leaving her with a badly bruised face.

She admitted earlier this year the pair have been working on rebuilding their friendship.

A stream of intimate photos of the pair posted by Rihanna and Chris online has fuelled rumours they're more than just friends.

On Thursday the Umbrella hitmaker seemed to want nothing to do with men, however.

“Never underestimate a man's ability to make you feel guilty for his mistakes,” she tweeted.

Fans rushed to respond to the star with worried messages about the status of her relationship with Chris.

The cryptic tweet followed several others recently posted by Rihanna after Chrus with ex-girlfriend Karrueche Tran in Paris on December 7.

“Examine what you tolerate,” she wrote.

“You give, you get, then you give it the f*** back” and “Goodbye muthaf*****,” read other tweets.

The messages were later removed and Rihanna posted another snap of her with Chris, writing that she “missed” him.

Neither star has commented on the report.