By Chibuike Oguh, Yadarisa Shabong and Ankur Banerjee NEW YORK (Reuters) -The U.S. dollar weakened against the yen on Monday as investors worried about a probable U.S. economic slowdown and a persistent selloff on Wall Street that has been battered by continued policy uncertainty surrounding the Trump administration's trade policy.

David Roche of Quantum Strategy believes that the Japanese yen is now the new safe-haven currency, surpassing the US dollar, because of worldwide geopolitical shifts and a lack of confidence in US foreign policy during Trump's administration.

The US Dollar dropped to a five-month-low against the Japanese Yen and the Swiss Franc due to Donald Trump's tariff, and US economic slowdown concerns loom over currency markets.

The yen was investors' safe harbour of choice on Tuesday and it touched a five-month high as fears about a tariff-driven slowdown in U.S. economic growth have rattled U.S. stocks and the dollar. The Nasdaq fell 4% overnight and the S&P 500 slid 2.