The death toll from Wednesday's crash of a Spanair passenger jet at Madrid Airport rose to 154 on Saturday following the death of a badly burnt 31-year-old woman, state news agency EFE reported.

Another 18 survivors are still being treated in hospital following the crash when the MD-82 jet crashed on take-off for a flight to the Canary Islands.

The Spanish government has promised a comprehensive investigation into the causes of the crash, Spain's worst aviation disaster since 1983.

The woman who died on Saturday was named as Maria Luisa Estevez.