Travel retailer Lastminute.com is set to sue Google over plans to change the way it sells advertising.

Currently, if a person types a trademarked business name, that name will appear at the top of a search. However, Google wants to bring in a new system which will mean that those names appear under a whole list of adverts.

Lastminute is worried that you could get an advert for another travel company by typing in its name. The Chief Executive of Lastminute.com, Ian McCaig, told Channel Four that Google's proposals will cost them millions and could breach trademark law.