UK Athletics chairman Ed Warner has hit out over the delays holding back the reopening of the Olympic Stadium.
The London Legacy Development Corporation (LLDC) previously said that the venue is unlikely to host any events until 2015 or 2016, a situation Warner has branded a "farce".
BBC Sport quotes him as saying: "My biggest concern is that we have some major events planned for that stadium and we thought they were going to be from the summer of 2014 onwards.
"All of the legacy use was scheduled to start in two years' time and now it might be four years' time, which strikes me as ludicrous and to be a paralysis of decision-making which I hope the mayor is going to cut through.
"I wouldn't say this is a Whitehall farce but this is fast becoming a Stratford farce."
West Ham United, Leyton Orient and Intelligent Transport Services are among the parties to have submitted applications to use the stadium in the future.
