U.S. equity futures are indicating a lower open for stocks when trading begins on Tuesday on Wall Street.
The three major futures indexes are pointing to a decline of 0.3 percent.
Stocks were looking at modest gains until President Trump, speaking at the NATO conference in London, that there is no deadline for a trade deal with China and that it is probably better to wait until after the election for a deal.
Preliminary data from Adobe projected Cyber Monday sales of $9.2 billion by the end of Monday and remains the largest online shopping day in the U.S, growing 16.9 percent year-over-year.
Technology companies led a broad slide for stocks on Wall Street on Monday, handing the market a downbeat start to the month after it notched strong gains in November.
Trade tensions flared after China retaliated for U.S. support of protesters in Hong Kong, putting investors in a selling mood. Asian regional markets are generally hurt by declines in trade and the slowdown in the Chinese economy that might cause.
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Investors have been hoping that the world's two biggest economies can make progress toward at least staving off new tariffs scheduled for Dec. 15 on $160 billion worth of Chinese products, including smartphones and laptops. Negotiations on ending the longstanding trade war could face a tougher path this month following the flareup over Hong Kong.
France's CAC 40 was down 0.4 percent, Germany's DAX gained 0.5 percent and London's FTSE fell 1 percent.
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Japan's benchmark Nikkei 225 lost 0.6 percent, Hong Kong's Hang Seng fell 0.2 percent, while the Shanghai Composite recovered earlier losses to inch up 0.3 percent.
The Associated Press contributed to this article.