The Police star Andy Summers has admitted that the group have been arguing in rehearsals for their reunion tour.

The band's guitarist confirmed that there have been "heated discussions" but assured fans that the tension will have a positive effect on their performances.

"Some discussions are more heated than others. We are not falling apart - the motor is purring nicely," Summers explained. "But at the same time, we are a rock band and by definition you have to be somewhat at the edge.

"I know what you want me to say. You want me to say that we're all fighting and scratching. We're not, we just have that edge in our playing. There's nothing wrong with having an ego."

The tour kicks off in Vancouver, Canada next week.