American Airlines and LATAM Airlines, an airline based in Santiago, Chile, have been hit with a lawsuit filed under Title III of the 1996 Helms-Burton Act.

The litigation makes American Airlines the second U.S. company, after Carnival Cruise Lines, to be sued under the law, which allows Americans to sue companies doing business in Cuba that are allegedly profiting off of land expropriated after the 1959 Cuban revolution. The Helms-Burton Act was first passed in 1996 but every U.S. administration had suspended it until the Trump administration announced it would, for the first time, allow it to take effect.