U.S. stock-index futures were lower as investors turned risk averse ahead of several notable events on Thursday, including the general election in the UK, the ECB's meeting, and former FBI Chief James Comey's testimony before the Senate Intelligence Committee.

Stocks:

Nikkei 19,979.90 -190.92 -0.95%

Hang Seng 25,997.14 +134.15 +0.52%

Shanghai 3,102.33 +10.68 +0.35%

S&P/ASX 5,667.47 -87.39 -1.52%

FTSE 7,517.72 -8.04 -0.11%

CAC 5,271.03 -36.86 -0.69%

DAX 12,703.43 -119.51 -0.93%

Crude $47.26 (-0.30%)

Gold $1,294.60 (+0.93%)