The Belgian government has announced that the Brussels Region will remain at the highest state of alert for terrorism until 30 November, and that it assesses that the threat of a terrorist attack is serious and imminent.

The Belgian authorities have advised the public to remain vigilant where there’s a high concentration of people – eg shopping centres, public transport and public events. The Belgian authorities have also advised that people can go to their place of work. There’s a heavy police and military presence in Brussels, including at transport hubs and public sites. You should follow the advice of local authorities and respect security controls.You can find more information on the Belgian Crisis Centre website and Twitter feed.

Over-ground trains, (including international services), airports, trams and buses are operating. The Brussels metro network remains closed on 24 November, but services will resume gradually on 25 November. For live information on the Brussels transport network, visit the STIB website or Twitter feed.

Public events are likely to be cancelled and tourist attractions closed. Contact event organisers for information on whether specific events are going ahead.

Crèches, kindergartens, schools and universities in Brussels will reopen on 25 November.

There have been a number of police raids in the Brussels Region and other Belgian cities in recent days. Belgian security operations are likely to be carried out at short notice without warning. If you’re in an affected area you should follow the instructions of the Belgian security authorities. Police have asked the public not to comment on police operations on social media.

The threat level for the rest of Belgium (outside of the Brussels Region) is at ‘level 3’, a possible and real threat. You should stay vigilant in places with large groups of people and respect security controls. You should follow the advice of local authorities and respect security controls. You can find more information on the Belgian Crisis Centre website and Twitter feed.

You should check this travel advice for updates and subscribe to email alerts.

Travelling via Calais? Check our travel advice for France.

Up to 1.8 million British nationals visit Belgium every year. Most visits are trouble-free. Take out travel and medical insurance before you travel.

If you need to contact the emergency services in Belgium call 112.

If you’re travelling to commemorate the First World War centenary, see this information and advice page to help plan your trip and make sure it’s safe and trouble free. Some sites will become extremely busy at certain times of the year, and some may have access restrictions.

When visiting former WW1 battlefields in north west Belgium, stay on the footpath and exercise caution if you see anything that looks like shells or munitions. Unexploded shells have recently been uncovered. Move away from the site and call the police emergency number 112 to report any incidents.

European summits and demonstrations often take place around the Schuman area. They can cause some disruption and access to the British Embassy and the British Consulate General can be affected. Check local news and transport sites: train & metro info and also road info.

Theft and pick pocketing is a problem in crowded areas. Take care of your belongings and passports at all train stations in Brussels. See Crime

The Overseas Business Risk service offers information and advice for British companies operating overseas on how to manage political, economic, and business security-related risks.