SASEMAR said that 240 migrants on seven boats were rescued in the Strait of Gibraltar, and another 284 migrants on five boats had been rescued in the Alboran Sea.
According to the International Organization for Migration, Spain currently tops the list of Mediterranean countries by the number of migrant sea arrivals, with over 25,000 migrants arriving in the country since the beginning of the year.
Over 61,500 migrants have arrived in Europe by sea in 2018, and more than 1,500 people are reported dead or missing.
Undocumented migrants are reportedly trying to reach EU countries through various routes, including via Italy, Greece, Turkey and the Balkans.
Spanish Prime Minister Pedro Sanchez said earlier that Madrid would set up a central operational command to address the immigration-related challenges the country is facing. According to the prime minister, the objective of this command will be to prevent migrants from illegally entry to Spain from their countries of origin.