WASHINGTON, D.C. (KDAL) - Minnesota lawmakers have introduced legislation that would consider closing the Upper St. Anthony Falls Lock to prevent the spread of Asian carp and require immediate closure if the invasive species is found. The bill, authored by Sen. Amy Klobuchar in the Senate and Rep. Keith Ellison in the House, also calls on federal agencies to work with the state to combat infestations and prevent the spread of Asian carp to the state's rivers. Sen. Al Franken and Reps. Rick Nolan, Erik Paulsen and Tim Walz all cosponsored the legislation. The measure has the support of the Minnesota Department of Natural Resources and numerous other conservation and environmental protections agencies.