European markets are expected to start the week lower as a reshuffle in President Donald Trump's cabinet and a flare-up in tensions with North Korea spooks investors.

Futures indicate that the FTSE 100 will fall 29 points at open, Germany's Dax is expected to lose 21 points and Cac 40 futures indicate the benchmark will open 15 points lower.

Asian markets were mixed on Monday, with Japan's Nikkei down 77.28 points or 0.4% to 19,393 and the Topix fell 0.14% or 2.17 points to 1,595.19. Meanwhile Hong Kong's Hang Seng gained 103.72 points or 0.38% to 27,151.29 and on mainland China the CSI 300 gained 0.33% or 12.21 points to 3,726.88.

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South Korea's Kospi fell 0.15% or 3.52 points to 2,354 while U.S. troops and South Korean forces conduct a joint military exercise today. Investors are wary that the exercise could flare up tensions between the U.S. and North Korea.

U.S. futures were down Monday morning in Europe, with Dow Jones Industrial Average futures falling 0.12% and S&P 500 futures down 0.21% ahead of the Jackson Hole meeting of global central bankers later this week.

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