Chemistry professors at Durham University have been elected to a leading scientific body for producing work of international importance.

Judith Howard and David Parker have been elected to the Fellowship of the Royal Society, the highest distinction awarded by the scientific community in the UK.

Professor Howard specialises in the analysis of structures at extreme pressures and temperatures and was awarded a CBE in 1996 for her services to science.

Professor Parker joined Durham University in 1982 after securing first class degrees from Oxford University, and a Nato fellowship in Strasbourg.

Their awards bring the number of fellows in the university's chemistry department to five.

The standard of research by the department has helped it achieve a 5*A rating in the most recent Research Assessment Exercise, a rating shared only by Oxford and Cambridge.

Sir Kenneth Calman, vice-chancellor of the university, said: "The university is tremendously proud to have people of world-class quality at the heart of its research community."