Markets in Europe and Asia fell sharply as investors seek to offload risky assets amid concerns the Eurozone debt crisis is intensifying. The London stock market dropped 0.76%, Frankfurt slid 0.83%, Madrid index lost 0.60% and Paris shed 1.15% by Tuesday’s closing. Asian markets also tumbled Tuesday, with Nikkie closing 1.43% in Tokyo, Shanghai losing 1.48%, Hong Kong 2.19% and Sydney 1.90% at close. In the US, three key stock indexes closed in the negative, though just within 1% of where each had started. The market response comes as European officials vowed to support a rescue fund designed to end mounting concerns over the Greek debt crisis.