At least 13 people have been killed and 100 injured after a van mounted a pavement and ploughed into pedestrians at a popular tourist spot in Barcelona.
Spanish police have also shot dead five men wearing suicide belts after they rammed another vehicle into people in Cambrils - believed to be a second terrorist incident.
The Foreign Office has set out this advice for people concerned about terrorist attacks:
What should I do if I'm caught up in the Barcelona terrorist attack?
- Follow the advice of the local authorities when instructed.
- Turn any mobile phones or other devices to silent.
- Do not put your location on social media
- If you are safe, follow the instructions of the Spanish authorities and notify friends and family via social networks, to avoid using phone lines.
I'm concerned about someone who is in Barcelona. What should I do?
A helpline has been set up on 0034 93 214 21 24, however some callers have having problems with the line. The Spanish authorities are working to resolve this.
How can I reduce the risk of falling victim to a terrorist attack?
- Be vigilant in public areas and places that attract foreigners and westerners – e.g hotels, restaurants, bars and crowded places like markets, malls or sports events. Always be aware of your surroundings.
- Look out for anything suspicious and if you see anything report it to the local police immediately – many terrorist attacks are foiled by the vigilance of the public. Where appropriate, you should also report concerns to your employer or your travel company
- Keep your mobile phone charged and with you, with emergency numbers programmed in.
- Think about the routes you use and have a plan of action to follow in the event of an incident