In initial London deals, the British capital's benchmark FTSE 100 index of major blue-chip companies rose nearly 0.4 percent at 7,744.40 points.

In the eurozone, the Paris CAC 40 added 0.4 percent to 5,570.73 points, compared with the closing level on Thursday.

Frankfurt's DAX 30 index gained almost 0.5 percent to 12,917.15 points.

However, Asian markets mostly fell one day after Trump shocked the world by pulling out of next month's historic summit with North Korea leader Kim Jong Un.

Nevertheless, the losses were tempered by hopes the talks can be rekindled, according to analysts.