Barcelona
"Americans will always stand with our Spanish friends," he said.
The attack in Barcelona is the latest instance of a vehicle being used as a weapon. Here’s why such attacks are on the rise.
He advises people to "study what General Pershing of the United States did to terrorists when caught'' -- a story with no basis in fact.
A vehicle plowed through pedestrians who were walking down Las Ramblas, a street popular with tourists in Barcelona, Spain.
WHAT'S HAPPENING
At least 14 people were killed in the attacks.
An angry backlash against overcrowding has swept places like Dubrovnik, Rome, Barcelona and Venice.
Videos show the main stage engulfed in flames.
Many of the passengers were already standing, ready to get off, when the train crashed.
