The Saudi Defence Ministry said on late Friday that at least three national troops were killed and seven others were wounded when Iranian-backed Houthi rebels launched rocket attacks on a Saudi military base from Yemen.
The attack on the military base was immediately claimed by the Houthis through a Houthi-close TV network, Al Massira, which said rebel forces attacked the base in the Asir region using more than 20 rockets.
Many people were killed and many others injured in the rocket attack, in which a weapon warehouse was also destroyed, according to the channel.
Saudi Arabia has declared a five-day truce in order to provide aid to the people of Yemen. However, both sides of the conflict have continued to exchange fire despite the declaration.
The latest incident is not the first time that the parties have violated a ceasefire. On July 9, the United Nations declared an “unconditional humanitarian ceasefire” in Yemen to last until the end of the Islamic holy month of Ramadan.
Both the Houthis and Saudi Arabia have accused each other of violating the truce since it started.
Saudi Arabia and Houthi forces have been exchanging fire across the Saudi-Yemeni border since the Saudis launched a military operation in Yemen against the Houthis involving air strikes on March 26 alongside an Arab coalition comprised of 10 countries.
After they launched the operation the governments of Saudi Arabia, Qatar, Kuwait, Bahrain and the United Arab Emirates, in a joint statement said that they "have decided to answer the call of President Hadi to protect Yemen and its people from the aggression of the Houthi militia."
Houthi rebels seized Yemen’s capital Sanaa in September 2014 - driving President Abd Rabbuh Mansur Hadi out of Yemen, after which he sought refuge in the Saudi capital Riyadh.
The United Nations declared the situation in Yemen to be a level-three humanitarian emergency, the highest on its scale, after about 80 percent of the country’s population fell into dire need of humanitarian aid due to the conflict.
Twenty million people in the country are in need of aid, 13 million are facing food shortages and 9.4 million are having difficulties accessing drinking water.