London 2012 organisers say West Ham United would have to agree to keep a running track at the Olympic Stadium if they are to move into the venue after the 2012 Games.

The new West Ham owner, David Sullivan, said today that the club want to leave Upton Park for the Olympic Stadium. The London mayor Boris Johnson is also keen on a football club taking over the running costs of the stadium but the decision will have to be taken by the Olympic Park Legacy Company.

A London 2012 spokeswoman said: "The OPLC are looking at the legacy of the Olympic Park, including the stadium. Everyone is clear that the stadium will have a running track in legacy but additional sporting use is a matter for the OPLC."

Sullivan said: "It is nice to get the club back in the hands of east Londoners and these are exciting times. We hope to persuade the Government to let us move into the new Olympic Stadium and I believe the people of east London would support that move."