Informed sources said Wednesday two Saudis were injured as a mortar shell hit a house and a playground at kanboura village, Jazan, on Saudi-Yemeni border, Egypt's Al-Fajr News reported. Ambulances and police forces rushed to the scene, the sources said, adding the mortar came from northern Yemen where Houthi rebels take control. This is the third time for Houthis to shell Saudi border villages, claiming several casualties, according to Al-Fajr. A Saudi-led Arab coalition has been hammering the Houthi rebels since March 26 at the request of the embattled president Abdraboh Mansur Hadi, who fled to the kingdom as the insurgents stormed his Aden-based presidential palace.