Congress is readying legislation that would ban most U.S. travel to North Korea after 22-year-old Otto Warmbier was imprisoned in the country and then released to his parents in a coma, according to CNN.

Warmbier died in the United States days after his return, raising tensions between the United States and North Korea and leading lawmakers to look for ways to punish Pyongyang while protecting U.S. citizens.

Travel prohibitions have received the most attention, and the House Foreign Affairs Committee plans to draft a bill that would prohibit the majority of travel to the authoritarian country for five years, CNN reports.

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The bipartisan legislation, which is sponsored by Reps. Joe Wilson Addison (Joe) Graves WilsonDemocrats raise alarm about new US human rights priorities Democrat Teresa Leger Fernandez defeats Valerie Plame in New Mexico primary Trump campaign launches new fundraising program with House Republicans MORE (R-S.C.) and Adam Schiff Adam Bennett SchiffSchiff to subpoena top DHS official, alleges whistleblower deposition is being stonewalled Schiff claims DHS is blocking whistleblower's access to records before testimony GOP lawmakers distance themselves from Trump comments on transfer of power MORE (R-Calif.), would prohibit travel for tourism purposes and demand that any U.S. citizen going to the country for any purpose obtain a license from the Treasury Department.

Warmbier, who was sentenced to 15 years in prison with hard labor for allegedly stealing a propaganda banner, died after suffering from a “severe neurological injury.”

While U.S. doctors have not determined the cause of Warmbier’s death, North Korea has been blamed.