News Corp is expected to trim jobs at its London and New York newspapers in the coming weeks, company insiders say, as a steep decline in print advertising has forced sharp cost reductions on the news business.

News International, whose papers include The Times, Sunday Times and The Sun, is in the final stages of an efficiency review conducted by the Boston Consulting Group and could cut up to 50 jobs, or some 2.5 per cent of its staff, although new posts may be created.