The United States signed a memorandum of understanding Thursday with Mexico, launching a permanent solution to end the Tijuana River sewage crisis. Upon arriving in Mexico City on Thursday morning, Environmental Protection Agency Administrator Lee Zeldin met with Mexican officials to discuss what Zeldin called a 100% solution to end the crisis.

The United States and Mexico signed an agreement on Thursday to end the flow of raw sewage into the Tijuana River, which crosses the border into California and for years has contaminated and closed beaches and caused illnesses in both countries.