The Sugababes are not speaking to each other, according to reports.

Just 12 days after Jade Ewen replaced founding member Keisha Buchanan, the group had a huge argument during a photo shoot in North London.

The rift began on Friday (02.10.09), when Amelle Berrabah kept leaving the photographic studio to talk on her mobile phone, leaving Jade and Heidi Range waiting for over an hour.

A source told Britain's The Sun newspaper: "The others were kept waiting and got increasingly wound up. Heidi has seen it all before but Jade just wanted to get on and get the job done. Their management had to come down hard on the girls and tell them to behave."

But the girls were so angry the shoot had to be delayed for more than two hours so they could calm down.

The Sugababes have been plagued by in-fighting in the past, with Mutya Buena, Siobhan Donaghy and Keisha all leaving as a result of arguments.