Mumbai, Feb. 17 -- COMEX Copper futures fell sharply today, turning lower amid a bearish activity in metals. The red metal currently trades down 1.74% at $5.70 per pound, testing near two-week low. Equities offered minimal cues. Trading volumes were thin as markets in mainland China, Hong Kong, Singapore, Taiwan and South Korea were closed for the Lunar New Year holidays. Japanese NIKKEI 225 index eased 0.42%. European stocks gained marginally. The US markets were also shut on Monday in observance of Presidents' Day. Meanwhile, German economic confidence weakened in February after a strong rebound at the start of the year, the financial market survey conducted by the think tank ZEW showed Tuesday. The ZEW indicator of economic sentiment dro...