Bristol Rovers romped to victory as they left Hereford reeling.
Darryl Duffy capitalised on a defensive slip to fire in the opener and Rickie Lambert's superb curling shot from 30 yards added the home side's second.
A driven shot by Duffy and a Jeff Hughes left-footed rocket further stunned the visitors.
Lambert and Chris Lines netted from 25-yard free-kicks before Steve Guinan grabbed an injury-time consolation goal from close range for Hereford.
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