Saudi Arabia has invaded and occupied Yemen’s strategic Island of Socotra in the Indian Ocean and is now building up its biggest naval base there.

Saudi Arabia has invaded and occupied Yemen's strategic Island of Socotra in the Indian Ocean and is now building up its biggest naval base there, Fars news agency reported.

"Hundreds of workers from Asian countries have been deployed by the Saudi navy to construct the kingdom's naval base on the island," Arabic-language Al-Ittihad news website quoted informed sources as saying on Sunday.

Socotra is a small archipelago of four islands in the Indian Ocean; the largest island, also called Socotra, is about 95 percent of the landmass of the archipelago. Socotra is located between the continents of Asia and Africa.

Saudi Arabia is launching a wide-scale military campaign against Yemen and  it has been striking the impoverished nation for the last 144 days to restore power to fugitive president Abed-Rabbu Mansour Hadi, a close ally of Riyadh.

The Saudi-led aggression has so far killed at least 5,419 Yemenis, including hundreds of women and children.