A farm worker from south Norfolk who died last week after being overcome by fumes from a slurry tank, has been named today.

Craig Whipps died at the site in Stappleford Tawney, near Ongar in Essex, at about 5pm last Friday.

The 27-year-old, believed to be originally from Denton, died alongside colleague Paul Gray and two other men received hospital treatment.

East of England Ambulance Service spokesman Gary Sanderson said: 'On our arrival, two men were found in a critical condition and after everyone's best efforts, they were pronounced dead at the scene.

'A further two casualties, both men, were treated by paramedics before they were conveyed to Whipps Cross Hospital for observations.'

Firefighters drained 120,000 litres (31,700 gallons) of slurry on to a field as part of the rescue operations.

Assistant divisional officer Greg Keys said: 'An investigation is taking place and the fire service is working with the police and HSE (Health and Safety Executive) to establish what has happened.'

An investigation by Essex Police and the Health and Safety Executive continues and an inquest into the deaths will open in due course.