The European Union issued a warning in February 2019 that Cyprus, an EU member, was selling EU passports to Russian oligarchs, saying it would allow organised crime syndicates to infiltrate the EU. In 2020 leaked documents revealed a wider range of former and current officials from Afghanistan, China, Dubai, Lebanon, the Russian Federation, Saudi Arabia, Ukraine and Vietnam who bought a Cypriot citizenship prior to a change of the law in July 2019. Cyprus and Turkey have been engaged in a dispute over the extent of their exclusive economic zones, ostensibly sparked by oil and gas exploration in the area.