Japan's Nikkei posts biggest fall since late March

TOKYO (Reuters) - Japan's Nikkei share average fell 2 percent on Wednesday, its biggest percentage drop since late March, with selling accelerating after a break of a key technical support level from its 25-day moving average.

Market players said investors rushed to take profits from gains in recent months, with materials and other cyclical shares leading the losses following a tumble in copper prices.

(Reporting by Hideyuki Sano; Editing by Kim Coghill)