A Shrewsbury baby who survived an operation to separate her from her twin sister was stable yesterday after further surgery, Great Ormond Street Hospital has said.

Faith Williams, whose sister Hope died last week, underwent the procedure on Wednesday to help her circulation.

The conjoined twins, born on November 26, were joined from the breastbone to the top of the navel and had a shared liver but separate hearts.

Hope failed to survive after last Tuesday’s emergency operation because her lungs were too small to support her breathing.

A spokeswoman for the hospital said: “Faith Williams had surgery to assist with her circulation.

“The aim was to ensure more blood flows to her body and less through her lungs. She is currently critical but stable. We expect Faith to have other surgery and procedures in the weeks ahead.”

Faith’s mother, 18-year-old Laura Williams, is Britain’s youngest mother to give birth to conjoined twins.

The hospital spokeswoman said: “Laura and Aled Williams would like to thank all the staff involved in Faith’s surgery yesterday, and those who continue to offer her high levels of care at the hospital.”