A group of leading doctors and researchers has called on MPs to investigate potential conflicts of interest at the watchdog NICE.

In a letter to the Health Select Committee, they have expressed concern about financial ties to drug companies among experts working for NICE.

The concerns follow controversy over the recent NICE guideline on statin drugs.

NICE has defended its procedures on conflicts of interests.

The letter reflects continuing disquiet among some doctors and researchers over the recent decision by NICE to extend the availability of cholesterol-lowering drugs to millions of people at low risk of developing heart disease. 

A majority on the NICE panel that recommended this had ties to pharmaceutical companies. 

Their interests were declared but the letter argues that is not enough to ensure impartiality.

For more details, go to: http://www.bbc.com/news/health-29705499