Brussels explosions: Belgium travel advice
If you were due to travel there, or are there and are set to travel out of Brussels, then you need to follow the instructions of the Belgian security authorities.
Should you have friends or family there, and are worried, call the Foreign and Commonwealth Office on 020 7008 0000.
There have been incidents at Zaventem International Airport in Brussels and at Maalbeek station in central Brussels. The Eurostar has stopped services to Brussels and the airport is obviously closed.
For Eurostar information, visit the Eurostar website. The instructions of the Belgian security authorities can be found in the link, and there's further information at the Belgian Crisis Centre website and over at their Twitter feed.
Belgians have been given a helpline by the Belgian Crisis Centre, which is 00 32 2753 7300 if you want to pass that along to someone who may need it.
If you are travelling via Calais, then check out the UK government's travel advice for France. Should you be travelling to commemorate the First World War centenary, you should check this information and advice page. If you need to find out information about road travel and services for the metro and trains, then check these links: train & metro info and road information.