"The escalation in Ukraine is spooking investors again, and people are quick to pull the trigger to book recent profits," says David Thebault of Paris-based Global Equities.
Volumes thin as U.K. and Irish markets are closed.
Euro Stoxx 50 -1.1%, Paris -1.1%, Frankfurt -1.4%, Milan -1.1%, Madrid -1%.
U.S. stock futures: Dow -0.45%. S&P -0.4%. Nasdaq -0.5%