President Donald Trump on Thursday threatened Mexico with sanctions and tariffs in a dispute over water sharing between the two countries, accusing Mexico of breaking an 81-year-old treaty and "stealing the water from Texas Farmers."

Under the treaty, Mexico is required to send over 1.75 million acre-feet of water to the U.S. from the Rio Grande River every five years, but it has failed to do so.

U.S. President Donald Trump on Thursday threatened tariffs or sanctions on Mexico for its failure to deliver water, which U.S. officials have said is hurting Texas farmers who rely on the deliveries.