(AP) — The U.S. government is extending a ban on nonessential travel along the borders with Canada and Mexico to slow the spread of COVID-19 despite increasing pressure to lift the restriction. U.S. border communities that are dependent on shoppers from Mexico and Canada and their political representatives have urged the Biden administration to lift the ban. In addition, Canada recently began letting fully vaccinated U.S. citizens enter the country. But the Department of Homeland Security said in a tweet Friday that the restrictions on nonessential travel were still needed to minimize the spread of COVID-19 and the delta variant. It extended the ban until at least Sept. 21.