RIYADH — Custodian of the Two Holy Mosques King Salman and Crown Prince Muhammad Bin Salman have sent separate cables of congratulations to President János Áder of Hungary on his country's National Day. The two leaders wished the president constant good health and happiness and the government and people of Hungary steady progress and prosperity, Saudi Press Agency (SPA) said on Wednesday. Custodian of the Two Holy Mosques had a telephone conversation with Nigerian President Muhammadu Buhari. During the call, they discussed efforts to stabilize and rebalance global oil markets. They also stressed the importance of compliance by all participants to the OPEC+ agreement and the agreed upon compensation mechanism. They also discussed bilateral relations between the two countries and opportunities for their further development.