Sir Brian May has quit the RSPCA in the wake of an investigation into conditions at a flagship Marks & Spencer farm.

A review has been launched into RSPCA Assured, which indicates that meat, fish, eggs and dairy products have been produced to strict standards.

Queen guitarist Brian May has resigned from his role as vice president of the RSPCA, citing “appalling” animal welfare standards.

Queen guitarist Sir Brian May has quit as the RSPCA's vice-president over what he called “damning evidence” of animal welfare failings related to its food certification label. BBC News reported on Thursday that the association had to run spot checks on more than 200 'RSPCA Assured' farms to ensure they met its own standards.

RSPCA Assured has launched a 'comprehensive' review into the scheme as Queen guitarist Brian May quits his role as vice-president over animal welfare claims.

Sir Brian May has resigned as the RSPCA's vice president over what he called "appalling" animal welfare standards in farms certified under its scheme.

The RSPCA added that both it and the RSPCA Assured scheme “take any welfare concerns on farms very seriously - this is the sole focus of the scheme and central to the core work of the RSPCA. Failure to conform to the scheme standards is unacceptable".