Twins 'critical but stable' after separation op

One-year-old Guatemalan twins joined at the head were separated in a marathon operation in Los Angeles - but one sister was returned to surgery a few hours later because of bleeding on her brain.

Maria Teresa Quiej Alvarez and her sister, Maria de Jesus, were in critical but stable condition last night at the University of California at Los Angeles Medical Centre, but doctors were optimistic about their recovery. They were expected to remain sedated and using breathing tubes for days.