Hyderabad, Aug 9 - Badminton World Federation (BWF) Sunday termed as 'unfortunate' England's decision to pull out from the World Championships citing security concerns, and said the team management could have waited for some time to allow the world organisation to come out with credible information on the threat perceptions.

BWF chief operating officer Thomas Lund, however, said that it was England's personal decision based on 'perception' and ruled out any threat to the world event. This is the second time the England team has decided to pull out of an tournament in India. In March, they didn't participate in the Indian Open Grand Prix also held in Hyderabad.

According to BWF rules, the English team will have to shell out $250,000 for withdrawing from the championship.

The 19-member English squad took the decision to withdraw Saturday evening. The team included the top mixed doubles pair of Nathan Robertson, 2004 Olympic silver medallist, and Jelly Wallwork.

'We respect the decision of the England team. We are not here to assess their decision. But it is unfortunate that the English team made their decision before we had an opportunity to brief the team management,' Lund told reporters here at the Gachibowli Stadium.

'There was no specific threat to the World Championships.