Brussels, Ramadan 1, 1437, Jun 6, 2016, SPA -- U.S. President Barack Obama and senior European Union officials will hold talks in Warsaw next month to discuss political and economic issues and international security challenges. President Obama will meet with European Council President Donald Tusk and European Commission President Jean-Claude Juncker on the sidelines of the NATO summit in the Polish capital on July 8-9, AP reported. The Commission said in a statement Monday that the refugee crisis, counterterrorism and ways to boost economic growth and prosperity will top the agenda. --SPA 18:14 LOCAL TIME 15:14 GMT www.spa.gov.sa/w