Shares in Asian manufacturers tumbled on concern that tariffs will hurt trade in North America and disrupt global supply chains.

Asia shares mostly fell in Monday trading as worries grow about President Donald Trump imposing tariffs on key U.S. trading partners.Japan's benchmark Nikkei 225 lost 2.7% to finish at 38,520.09. Australia's S&P/ASX 200 declined 1.

Asian stocks reliant on exports, ranging from Japanese carmakers to Chinese e-commerce firms, nosedived after US President Donald Trump unleashed his first wave of tariffs, signaling the beginning of a new round of global trade war.

Asia's factory activity weakened in January as soft Chinese demand and threats of higher tariffs by U.S. President Donald Trump weighed on business sentiment, private surveys showed on Monday, darkening the outlook for the region's economy.

Investors are bracing for a potential trade war that could hit the earnings of major companies and dent global growth. Canada and Mexico have said that they will hit back with retaliatory tariffs while China promised to respond with "corresponding countermeasures" and vowed to challenge Trump's move at the World Trade Organization.

Asian stocks plunge as Trump’s tariffs spook markets Stock markets in Asia dropped on Monday after US tariffs on China, Canada and Mexico triggered fears of a hit to global growth. Japan's Nikkei index tumbled as much as 2.