Greenberg Traurig has ended merger talks with major U.K. law firm Berwin Leighton Paisner, both firms confirmed Wednesday.

“After a reasonable level of serious diligence and with a strong desire to minimize the cost and distraction to our firm as we focus on our business, we have determined not to pursue a merger with Berwin Leighton Paisner at this time,” Richard Rosenbaum, executive chairman of Greenberg, said in a statement.