The World Health Organization's European branch on Thursday said it was too early to ease virus restrictions in Europe despite a drop in new cases in most countries.

"Thirty countries have seen a significant decrease in 14-day cumulative incidence... Yet, transmission rates across Europe are still very high, impacting health systems and straining services, making it too early to ease-up," the WHO's regional director for Europe, Hans Kluge, said at an online press conference.