Saudi Arabia condemned on Friday attacks launched by unidentified warplanes on the presidential palace in Yemen's southern city of Aden.
According to an official source, the Kingdom is worried the bombings and terrorist attacks could leave Yemeni people exposed to endless disorder.
The source stressed Riyadh's firm stance on supporting 'legitimate authority' and the people of Yemen.
Saudi King Salman bin Abdulaziz al-Saud issued an order to send urgent medical aid to help injured people in Sanaa and Aden, the official added.