On 2 August 2013, Spanish Foreign Minister José Manuel Garcia-Margallo gave an interview to Spain's "ABC" newspaper. He announced possible plans to introduce a 50 euro border crossing fee for people going to and from Gibraltar, in response to the creation of the artificial reef. Plans to close Spanish airspace to Gibraltar bound flights were also reported, as were plans for an investigation by Spanish tax authorities into property owned by around 6,000 Gibraltarians in neighbouring parts of Spain. The Spanish Foreign Minister also mooted plans to changes in the law meaning British online gaming companies based in Gibraltar would have to base servers in Spain, meaning that they would come under Madrid's tax regime.