A huge explosion shakes the Spanish capital, Madrid
A huge explosion occurred in the Spanish capital, the causes of which were not known yet, and there are reports of casualties
"La Sixa" television channel reported that a huge explosion was heard in the center of the Spanish capital, Madrid, without providing further details.
Two witnesses told Reuters they heard a loud explosion. They said that a column of smoke rose over the area after the explosion.
The emergency services have not yet confirmed what happened.
Activists on social media in the country posted videos that they said were of the site of the explosion.