Rita Ora breaks up with Rob Kardashian

The 22-year-old British singer and Rob, 25, are said to have broken up due to the pressures of distance and their differing work schedules, reported Sun online.

"It's really sad - they really liked each other but with him living in LA and her over in London, it was becoming impossible to maintain a relationship," a source said.

"They'd only decided to go public with the romance a couple of months ago so as not to put any pressure on themselves, but they've already split. Rob has now deleted everything on Twitter that reminds him of Rita," it added.

Both Ora and Rob had initially played down reports that they were dating.

However, Rob appeared to confirm that the pair were an item last month with a series of pictures on his Twitter page.