BRUSSELS (Reuters) - A group of 165 companies and industry bodies have called on EU antitrust enforcers to take a tougher line against Google, saying the U.S. tech giant unfairly favours its own services on its web searches.

The group includes U.S. and UK companies as well as peers in 21 EU countries. It sent a joint letter to EU antitrust chief Margrethe Vestager on Thursday, saying Google was giving its own services, such as those for accommodation, travel and jobs, preferential placement in its search results and urging swift action to stop the practice.