Washington, July 12 -- US President Donald Trump on Sunday (local time) mourned the death of his close ally, US Senator Lindsey Graham, saying that he was "one of the greatest people and Senators I have ever known".

In a statement posted to his Truth Social platform, the President praised the 71-year-old South Carolina Republican as a "true American Patriot" who was "always working".

Trump expressed his grief, noting that the senator "will be greatly missed" and promising that further details and arrangements would follow.

"Senator Lindsey Graham, one of the greatest people and Senators I have ever known, is dead! He was always working, and was a true American Patriot. Lindsey will be greatly missed!!! DETAILS AND ARRANGEMENTS TO FOLLO...