A new law banning Sunday trading in Poland has gone into effect, with supermarkets and other retail outlets closed in the staunchly Catholic country.

After a gap of 27 years, direct flights between Iran and Serbia resumed on Saturday, when an IranAir jet touched down at Belgrade's Nikola Tesla airport, Serbian media reported.

Turkish Airlines has confirmed plans to buy at least 50 wide-body aircraft from Airbus and Boeing as the flag carrier ramps up its ambitions ahead of a move to a new Istanbul airport.

President Donald Trump on Thursday promised to show fairness and flexibility towards America's "real friends" in rolling out new tariffs of 25 percent on steel and 10 percent on aluminum.

News that Donald Trump had agreed to meet North Korean leader Kim Jong Un sent Asian stock markets surging and the yen tumbling on Friday, while dealers were also optimistic US trade tariffs will be less severe than thought.

United States trading partners, led by Asian powerhouses China and Japan, lashed out Friday at controversial tariffs on foreign steel and aluminium signed off by President Donald Trump, as fears grew of a global trade war.

Japan's central bank on Friday said it was keeping its ultra-loose monetary policy in place, in keeping with expectations, as the world's third-largest economy struggles to rekindle growth.

U.S. President Donald Trump on Thursday slapped deeply contentious trade tariffs on foreign steel and aluminum, swatting aside warnings of a global trade war and protests from allies in Europe and at home.

President Donald Trump vowed to be flexible toward "real friends" of the United States as the White House prepared Thursday to roll out punitive trade tariffs -- singling out Germany for criticism and adding Australia to a list of likely carve-outs.

President Donald Trump pledged Thursday the United States would show "flexibility" to "real friends" concerning planned steel and aluminum tariffs, ahead of an expected signing ceremony to formalize the controversial measures.