Postpublished at 15:48 British Summer Time 27 May 2015
US Attorney General Loretta Lynch has opened a news conference in New York. The director of the FBI James Comey is also there.
Summary
Fourteen sports officials indicted over corruption charges at the sport's governing body Fifa on 27 May
Seven of the 14 arrested in Zurich, Switzerland - president Sepp Blatter is not among them
One of those held is Jeffrey Webb - Fifa's vice-president
The corruption case involves alleged bribes worth more than $150m since the early 1990s
US attorney general claims executives accepted bribes to secure the 2010 World Cup in South Africa
Six of the seven suspects held in Zurich are contesting their extradition to the US
Separately, Swiss prosecutors launch a criminal case into the 2018 and 2022 World Cup bids
Postpublished at 15:48 British Summer Time 27 May 2015
Fifa president 'might be questioned'published at 15:43 British Summer Time 27 May 2015
BBC Newsnight's chief correspondent tweets, external:
Image source, Twitter'Having a rest'published at 15:36 British Summer Time 27 May 2015
A spokesman for the Confederation of African Football (Caf), Junior Binyam, says his organisation reiterated its support to the Sepp Blatter presidential candidacy during a meeting in Zurich earlier on Wednesday.
Mr Binyam also commented on reports that Caf president Issa Hayatou was approached for questioning at the hotel in Zurich, but was not among the officials arrested.
"President Hayatou is at Baur au Lac hotel in Zurich having a rest... And for the time being Mister Hayatou is in Switzerland and has always being available to answer to any authority for the related matter."
Visual aidspublished at 15:32 British Summer Time 27 May 2015
BBC Sport's Richard Conway is keeping across developments on Twitter, external. He says the US Attorney General's office has put together these handy visual guides to explain the Fifa arrests.
Image source, Twitter
Image source, TwitterComing uppublished at 15:30 British Summer Time 27 May 2015
The FBI and the US Attorney General will hold a news conference at 14:30 GMT (10:30 EST). You can watch it live here on the BBC website.
Postpublished at 15:30 British Summer Time 27 May 2015
@juhapearson tweets:, external @BBC_HaveYourSay Let's not forget the hundreds of migrant workers who have died building stadiums for the Qatar World Cup #FIFA
Get involvedpublished at 15:20 British Summer Time 27 May 2015
Kaleb Fasil emails: This is good news. Other than the charges mentioned there need to be more investigation of fixing games and bribing referees. I travelled to Qatar in 2013 for 9 months, it's the hottest place on Earth when it comes summer time. There are human rights allegations and a culture of a weak freedom of women's rights.
Postpublished at 15:19 British Summer Time 27 May 2015
The UK's minister for sport, Tracey Crouch, has welcomed the Fifa investigations, saying she "fully backs the FA's position that change and reform is urgently needed at the top of Fifa, including its leadership".
'Cleaning up'published at 15:13 British Summer Time 27 May 2015
BBC Sports News Correspondent Richard Conway tweets, external:
Image source, TwitterPostpublished at 15:09 British Summer Time 27 May 2015
World Have Your Say is now live on BBC World Service radio answering audience questions on the Fifa corruption inquiry. Listen live here and send your questions to @bbc_whys, external.
Image source, Getty ImagesPostpublished at 15:06 British Summer Time 27 May 2015
Nick Bryant
BBC News, New Yorktweets:, external The bulging ring-binder that contains the charges and Indictments in #Fifa officials case
Image source, Nick BryantPostpublished at 14:54 British Summer Time 27 May 2015
If you are just joining in now - welcome to the BBC's live coverage of the arrests of football officials at the sport's governing body body Fifa. They were detained over corruption allegations in Zurich, Switzerland.
Stay with us for the latest updates - reports from our correspondents on the ground, expert analysis, and your reaction from around the world. You can contact us via email, text or Twitter. We'll publish what we can.
Calls for more transparencypublished at 14:53 British Summer Time 27 May 2015
German sportswear company Adidas is calling on Fifa to do more "to establish and follow transparent compliance standards in everything they do" following the charges. It's not the first time the firm - which has been associated with Fifa for more than half a century - has expressed concern over corruption allegations, Reuters reports.
Postpublished at 14:44 British Summer Time 27 May 2015
tweets:, external FIFA: 10 for questioning incl big Exco men: Makudi, Lefkaritis, Hayatou. Swiss AG says to be questioned "as persons providing information."
New leader?published at 14:35 British Summer Time 27 May 2015
Prince Ali Bin al-Hussein of Jordan, who is running against Sepp Blatter for the role of president, says the crisis at Fifa "cannot continue".
"Fifa needs leadership that governs guides and protects our national associations. Leadership that accepts responsibility for its actions and does not pass blame.
"Leadership that restores confidence in the hundreds of millions of football fans around the world."
Image source, Reuters'It's like a chess game'published at 14:24 British Summer Time 27 May 2015
David Mellor, former UK government minister and football radio presenter, had some strong words for Mr Blatter on BBC Radio 5 Live.
"It's like a chess game now, the next move is obvious. Blatter and his shambolic regime now have to go."
Postpublished at 14:16 British Summer Time 27 May 2015
David in Hertfordshire, UK emails: How can Blatter remain at the helm of FIFA after this has happened on his watch? We now require all of the UEFA officials come out and vote against Blatter, in order to restore confidence in the organisation, otherwise most of the business support will slowly disappear. There is much too much money in football going to the wrong people. Who pays the price? - as always the supporters.
Postpublished at 14:15 British Summer Time 27 May 2015
Nelly Carvalho in Birmingham, UK emails: It is with the regret to say that football today is not the football it was years ago, football nowadays is full of corruption. Absolutely ridiculous.
Postpublished at 14:12 British Summer Time 27 May 2015
In Miami, the FBI raided the headquarters of the CONCACAF (Confederation of North, Central America and Caribbean Association Football) regional football body as part of the investigation.
Image source, AP"Shocking and harmful" - German reactionpublished at 13:59 British Summer Time 27 May 2015
More reaction from around the world to Wednesday's dramatic developments.
Wolfgang Niersbach, the president of the German Football Association, called events in Zurich two days before the Fifa congress "shocking and harmful for the world of football".
"It would be terrible if the severe accusations against members of Fifa are proved to be correct. In Uefa we will discuss how in the face of these events we will address the upcoming Fifa congress."