Europe close: Stocks finish mixed amid US-China trade worries and after Spanish elections

By the end of trading, the Stoxx 600 was 0.02% lower at 405.34, as Germany's Dax fell by 0.23% to 13,198.37, although the French CAC 40 edged higher by 0.07% to 5,893.82. London's FTSE 100 was down by 0.42% at 7,328.54.

Another weekend of chaotic demonstrations in Hong Kong culminated with a marcher being shot by police and a pro-Beijing counter-protester being set on fire.

CMC Markets analyst David Madden said: "The situation in the Far East appears to be getting worse, and when you factor in a cooling of the bullish sentiment surrounding the US-China trading relationship, it’s no wonder equities are lower this morning."

Luxury goods stocks such as Pandora, Richemont, Moncler were all lower following the weekend's unrest, as Hong Kong is an important market for high-end brands.

In Spain, the IBEX 35 was down by 0.06% at 9,388.50 after the country's Socialist Party won the largest portion of the vote in Sunday's elections but were unable to secure a majority, as the support for far-right parties surged.

Acting Prime Minister Pedro Sánchez said he would seek to form a stable government and called on other parties to "act with generosity and responsibility in order to unblock the political situation".

Markets.com analyst Neil Wilson said the lack of any consensus from the country's fourth election in four years was a troubling reminder of what might happen in Britain if December's election results in a hung parliament.

Among individual stocks, UK bakery chain Greggs was the top riser after it said it now anticipates profit will beat expectations due to a 12.4% jump in sales during the first six weeks of its fourth quarter.

Wirecard was also in the green after it agreed to acquire a Beijing-based AllScore Payment Services for as much as €109m.

Swiss pharmaceutical company Novartis was also on the rise after snapping up the Japanese generics unit of South Africa's Aspen Pharmacare for €400m.