European stock markets rebound at open

European stock markets rebounded at the start of trading on Tuesday, with London's benchmark FTSE 100 index up 0.4% at 7 336.97 points.

In the eurozone, Frankfurt's DAX 30 gained 0.6% to 12 111.80 points and the Paris CAC 40 won 0.3% to 5 373.01.

Equity markets on both sides of the Atlantic had slumped on Monday as investors fretted over the fallout of a US crackdown on Chinese telecom giant Huawei amid the two countries' worsening trade war.