Two Indian expatriates along with a Saudi citizen were killed on Saturday by a missile fired across the borders with Yemen, the official the Saudi Press Agency reported.
The spokesman of the Civil Defense Lieut Colonol Ali Al- Shahrani identified the Saudi citizen as Hamad Ali Yassin Al- Hatila, 40.
He said some people were injured in the incident and were rushed to the hospital, Saudi Gazzette reported.
There was no immediate comment from the Indian embassy in Riyadh on the death of two Indians.
In September, an Indian was killed and three others were injured in mortar attacks in Saudi's Jizan region by rebels in Yemen, known as Houthis.
Just before Jizan incident, another Indian was killed and two others were injured in the same region.
Indians are the largest group of expats in the GulfKingdom and hundreds of them live in Jizan and Najran, the region bordering strife-torn Yemen.
A Saudi-led coalition has been fighting rebels Houthis since March 26. During the campaign, several Saudi border guards and soldiers have been killed in shelling from across the border.
Representatives from both sides are currently attending UN-sponsored talks in Switzerland.
At least 5,800 people have been killed and over 27,000 wounded in Yemen since March, according to the UN.