- 9 updates
The head of crisis management department at the Foreign and Commonwealth Office has said a hotline number will remain open 24/7 to callers in the UK who are seeking information on loved ones in relation to the Boston bombings.
The main FCO number is 020 7008 1500.
The UK Consulate in Boston has tweeted contact information for anyone needing help after the marathon explosions:
Runner Darren Foy, 40, from Southampton and his wife Sandra and their two children missed the explosions by just 30 minutes after he finished the marathon in three and half hours.
Speaking from the city, the chartered surveyor said:
Jez Hughes, a firefighter from Morley, West Yorkshire, had completed the marathon and was walking to the subway with his wife when they heard two explosions.
He had been standing only 100 yards from the finish line with other competitors but walked around the corner to meet his wife.
A runner from North Devon who took part in the Boston Marathon says he escaped injury after two explosions on the race finishing line. Mark Jenkin, 34, from Barnstaple, completed the event in 2hrs 24 mins - less than half an hour before the two blasts rocked the area. More details here.
Google has set up a person finder website for those looking for people following the explosions at the Boston Marathon. Those with information about individuals can also leave information on the site.
Boston Police has issued a phone number for relatives concerned about runners taking part in the marathon.
The number to call from the UK is: 00 1 617 635 4500.
According to the Boston Marathon website 374 British and 108 Irish runners were due to take part in the race.
If you are concerned about a friend or relative the site has a section where you can track the runners.
However due to the explosions, many runners may not have continued on the course.
The Boston Marathon website shows many British people were listed as taking part in the race.
The site also provides a tracking system for runners, however due to the explosions many runners may not have continued on the course.