Cameron Calls On EU To Step In David Cameron has raised concerns over the situation at the Spain-Gibraltar border with the EU - as he considers taking legal action over the stalemate. In a phonecall to EU Commission president Jose Manuel Barroso, the Prime Minister urged him to send monitors to review the lengthy border control delays - which have been instigated by the Spanish government. Mr Cameron told Mr Barroso that despite calls to his Spanish counterpart proposing talks to find a solution, no way forward has been proposed. A Downing Street spokesman said: "The PM explained that despite these efforts, the additional border measures continue and therefore we are now actively considering legal action and collating evidence on the sporadic nature of these measures which would prove that they are illegitimate." EU Commission president Jose Manuel Barroso Mr Cameron added that the border checks were politically motivated and disproportionate, and against the EU's right of free movement. He told Mr Barroso that as guardian of the treaties, he should investigate the issue by sending EU monitoring teams to the border to gather evidence. "The PM emphasised that the commission has a responsibility to do this as part of its role overseeing the application of Union law," the spokesman added. Mr Barroso said the commission would not hesitate to take any measures necessary to uphold EU law. The Spanish action followed the construction by the Gibraltar authorities of an artificial reef which Madrid claims ruins fishing in the area. The centre-right Popular Party government of Mariano Rajoy, which is embroiled in a corruption row, responded by beefing up border controls and suggesting that a fee could be imposed on every vehicle entering or leaving the outpost through its fenced border with Spain.