Gabrielle Giffords moved to Texas rehabilitation centre

The US congresswoman shot in the head in an attack at a constituency meeting in which six people died has been moved to a rehabilitation centre in Texas.

Scores of well-wishers turned out to wave at Gabrielle Giffords' ambulance as it transported her from a hospital in the Arizona city of Tucson to Memorial Hermann Rehabilitation Hospital in Houston.

Doctors in Arizona have said they are pleased with her progress, but there is a long road to recovery, as the BBC's Rajesh Mirchandani explains.