Roundup: Europe celebrates Christmas amid lingering security concerns

BRUSSELS, Dec. 24 (Xinhua) -- Amid the festive ambiance of European cities adorned with lights and decorations, this Christmas season is underscored by heightened security measures.

The recent university shooting in the Czech Republic, adding to the previous shooting and stabbing in Belgium and France, respectively, has exacerbated security concerns, casting a shadow over the holiday cheer in the continent.