UK newspaper publisher Trinity Mirror and its flagship title the Daily Mirror warned that more job cuts may be inevitable as new measures are taken to lower costs amid a turbulent economy, The Independent reported Thursday.

So far, the regional publisher has closed 28 local titles just this year, 11 of which, including the Derby Trader and Formby Times, were shuttered in the four months leading up to October 26. The publisher has stepped up its target for cutting costs by £5 million, to £25 million total, and will cut an additional £20 million, minimum, in yearly costs next year.

Ad revenues began declining faster across all categories, down 20.1 percent in the 17 weeks leading up to October 26, Trinity Mirror stated, according to The Independent. The group also announced a drop in regional and national circulation, with revenues down 5.7 percent and 4.7 percent, respectively, since the end of June.

Trinity Mirror's other titles include the Birmingham Post and the Daily Record in Scotland.