The US state of Texas has accepted an offer of flood aid from Mexico despite tension over President Donald Trump's proposed border wall and his threats to scrap a free-trade deal. Reports said Mexico offered vehicles, boats, supplies and food. Mexican Red Cross volunteers have also travelled to the flooded city of Houston.<br/><br/>President Trump has not yet commented but Secretary of State Rex Tillerson has thanked the Mexicans. Mr Tillerson said it's very generous of the government of Mexico to offer their help at this very, very challenging time for the citizens down in Texas and now moving towards the border of Louisiana as well. <br/><br/>He said it is not yet known when Mexico will provide the aid. But its government has suggested a similar mission to that sent to New Orleans after Hurricane Katrina in 2005, when 200 Mexican troops brought food, water and medicine. A separate convoy of 33 Mexican Red Cross volunteers left for Texas to work in Houston shelters.