Kathy Burke battling mystery illness

British actress Kathy Burke is in hospital suffering a mystery stomach illness.

The 'Elizabeth' actress, 42, was hurried to the Royal London Hospital yesterday after complaining of crippling pains.

Doctors are reportedly undergoing tests to discover the cause of the pain.

A friend tells British newspaper The Sun: "We are all very worried. She is very poorly and is feeling pretty miserable and low."