European stocks opened mostly down after Asian markets followed U.S. shares lower amid uncertainty over the fate of the U.S. tax reform package.
Germany's DAX fell almost 0.4% by 9:46 a.m. in London and the CAC 40 slipped 0.3% in Paris. The FTSE 100 was little changed.
Earlier, Hong Kong's benchmark Hang Seng Index closed 1.09% lower at 28848.11, after dropping by as much as 1.46%. Chinese stocks also retreated, following a money market interest rate hike by the central bank a day before. The Shanghai Composite closed 0.8% lower at a level of 3,266.14.
Japan's Nikkei 225 shed 0.62% on the day to 22,553.22, the lowest level in more than a week, as the technology sector sagged.