Diageo Great Britain is planning to invest in a new advertising campaign for its Guinness brand.

Speaking late last week, the drinks company said that it will spend GBP2m (US$4m) in an effort to push the stout in the country from May through to August. The campaign will include television, press and digital advertising in an effort to increase sales of Guinness.

"We enjoyed a very successful St Patrick's Day and spring rugby campaign across the trade," said Diageo GB senior brand manager for Guinness Steve Hamilton. "This new advertising campaign aims to increase consumer awareness of Guinness over the summer period and make the black stuff top-of-mind as consumers head out to enjoy barbecues with friends and relatives."

Earlier in the year, Diageo began a trial of its Guinness Red stout in 142 Mitchells & Butlers pubs across the UK.

The drinks giant launched the brand extension in a move that followed poor perfromances in the UK and Ireland. Volumes in the UK were down 1% in the year to 30 June, while in Ireland they slumped 8%.