World shares are mixed after U.S. stocks slipped, as doubts rose on Wall Street about whether the Federal Reserve will deliver economy-juicing cuts to interest rates by September.

Shares of South Korean automakers Hyundai Motor and Kia Corp fell on Thursday after U.S. President Donald Trump said the U.S. will charge a 15% tariff on imports from South Korea, including autos, as part of a trade deal.

Under the trade agreement, South Korea will invest $350 billion in key U.S. industries and purchase $100 billion worth of its liquified natural gas