Protests at the Total Lindsey oil refinery

Protesters demonstrate outside the Total Lindsey oil refinery in Immingham, near Grimsby on 30 January 2009. Hundreds of workers at oil refineries across Britain went on strike in protest at the use of foreign labour in engineering and construction projects. The protest started at Britain's third-largest refinery, Lindsey, run by French oil company Total, where workers walked out on Wednesday over the use of Italian and Portuguese contractors on a building project Photograph: Andrew Yates/AFP/Getty Images

Workers at the Grangemouth oil refinery in Scotland who were not taking part in strike action. Hundreds of workers at the refinery walked out following an early morning meeting Photograph: David Cheskin/PA

Protesters demonstrate outside the Total Lindsey oil refinery in Immingham, near Grimsby, north-east England on January 30, 2009 Photograph: Andrew Yates/AFP/Getty Images

Protesters gather at the Lindsey oil refinery in North Lincolnshire Photograph: Anna Gowthorpe/PA

Protesters gather at the Lindsey oil refinery in North Lincolnshire on 30 January 2009 near Grimsby Photograph: Christopher Furlong/Getty Images

Police watch protesters outside the Total Lindsey oil refinery in Immingham, near Grimsby, 30 January 2009 Photograph: Andrew Yates/AFP/Getty Images

Police watch protesters outside the Total Lindsey oil refinery in Immingham, near Grimsby, north-east England 30 January 2009 Photograph: Andrew Yates/AFP/Getty Images

Bernard McAulay, left, from the union Unite speaks to protesters at the Lindsey oil refinery in North Lincolnshire. Several hundred people gathered in a car park opposite the sprawling Lindsey refinery in protest at jobs being given to foreign workers Photograph: Anna Gowthorpe/PA

Protesters gather at the Lindsey oil refinery near Grimsby in North Lincolnshire, 30 January 2009 Photograph: Christopher Furlong/Getty Images