Dhaka, June 1 -- Donald Trump announced on Friday he was doubling foreign tariffs on steel imports to 50pc, as the president celebrated a "blockbuster" agreement for Japan-based Nippon Steel to invest in US Steel during a rally in Pennsylvania.

Surrounded by men in orange hardhats at a US Steel plant in West Mifflin, Trump unveiled the new levies, declaring that the dramatic rate increase would "even further secure the steel industry in the United States".

"Nobody is going to get around that," Trump said, of the tariff rate hike from what was 25pc. In a social media post after the conclusion of his remarks, Trump announced that the 50pc tariffs on steel would also apply to imported aluminum and would take effect on 4 June.

"This will b...