Washington, Dec. 9 -- US President Donald Trump warned that Washington will impose an additional 5 per cent tariff on Mexico if it does not release water owed to the United States under a long-standing treaty, saying the dispute is harming Texas agriculture.

In a post on Truth Social on Monday (local time), Trump accused Mexico of failing to meet its treaty commitments for five years, saying the deficit has now surpassed "800,000 acre-feet of water", which he called a major setback for "our beautiful Texas crops and livestock".

Trump said the US expects Mexico to deliver 200,000 acre-feet of water before December 31, with additional supplies to follow. He argued that recent requests from Washington have gone unanswered. "It is very unfa...