Saudi newspapers highlighted in their editorials today a number of local and international issues. Following are the main headlines of Saudi newspapers: - The Custodian of the Two Holy Mosques issues directives to launch a day of solidarity with Syrian children. - The Custodian of the Two Holy Mosques receives message from President of Guinea. - Crown Prince Salman confirms the strength of economic relations between Saudi Arabia and Japan. - Crown Prince Salman discusses with Japanese defense and economy ministers means of developing bilateral cooperation. - Prince Sultan bin Salman: SCTA starts implementing SR 5 billion worth of projects to preserve the cultural heritage. - Governor of Riyadh Region receives Argentinean foreign minister. - Justice Minister meets with delegation of British Parliament. - Security Spokesman: Two killed from each side when security force exchanged fire with insurgents in Qatif. - SR 362 million worth of contracts signed to implement water and sanitation projects in several regions of Saudi Arabia. - Governor of Najran Region signs development project contracts worth SR 99 million. - Saudi Arabia to participate in nuclear security summit in Netherlands next month.