The United Arab Emirates partook in meetings of the Arab League in Europe to discuss European-Arab relations. The Sudanese president made an official state visit to the United Arab Emirates to discuss the economic ties between the two countries. The Emirati space agency announced that it is working on a project to send a probe to orbit Mars. The Labour Ministry announced that as of January 2016 it will be lifting the six month labour ban rule in place in the UAE. The Abu Dhabi crown prince, Sheikh Mohammed bin Zayed Al Nahyan made an official state visit to Beijing where he signed a number of bilateral agreements between the two countries. The UAE has secretly dispatched hundreds of Colombian mercenaries trained at Emirati military bases to fight in Yemen. A hacker has leaked the financial information of hundred of consumers of the Investment Bank of the United Arab Emirates on Twitter.