Gabrielle Giffords is under intensive care at Texas Medical Centre after a flawless trip from Arizona, where throngs of well-wishers gave her a farewell that brought a tearful smile from the congresswoman.

Crowds cheered Arizona congresswoman Gabrielle Giffords as she left a Tucson hospital where she stunned doctors with her recovery two weeks after being shot in the head in an assassination bid.

Doctors have successfully operated on shot US congresswoman Gabrielle Giffords’ eye socket to remove bone fragments as she continued to show more signs of improvement.