A truck has ploughed into crowds in a busy tourist area of Barcelona, with reports that two people have died.
Several people have been injured and emergency services are at the scene.
Police have locked down the area and are treating it as a terrorist attack.
Meanwhile it's understood armed men have entered a restaurant in the city. Police are advising the public to stay away.
Eyewitness Angela has been seeking refuge in a nearby shop and described what she heard.
IN: all of a sudden
OUT: or anything like that
DUR: 10 seconds
ALT: Eyewitness Amir Anwar was saw people vacating the area
IN: we were all running one direction
OUT: down the ramblas.
DUR: 28 seconds