Supermarket Morrisons is to start its online groceries business by the end of this year after unveiling a tie-up with delivery firm Ocado.
Ocado is closely linked with Waitrose, exclusively delivering the supermarket's products - as well as its own and those of branded ranges - to its customers and the move is likely to spark a backlash.
Mark Price, managing director of Waitrose, recently told The Sunday Telegraph its lawyers would seek to examine any tie-up between the other two companies.
More top news
Too many patients who undergo emergency bowel surgery are dying because of inconsistent care practices, health experts have warned.
A report by a think-tank that claims more than half of households take more in benefits than pay in tax has been condemned as 'spin'.
The Education Secretary has set her sights on 'coasting' schools that have "fallen under the radar" with plans to force improvements.