We have received police intelligence that Sunderland supporters will travel into London on Saturday 30 March, before a football match with Portsmouth at Wembley Stadium the next day. Sunderland supporters will to meet in Trafalgar Square at 3pm then move to Covent Garden.
Large numbers are anticipated.
Police resources are available to deal with any incidents and will come and support your venues.
Venues around Marylebone, Kings Cross and Waterloo are likely to become extremely busy. Supporters are likely to return to venues around these areas and trains are likely to be busy.