The U.S. Supreme Court on Monday threw out a lawsuit filed by the states of Nebraska and Oklahoma against a Colorado law that allows the recreational use of marijuana.

The court declined to hear the case filed by the two states against Colorado's law, which was put in place as a 2012 ballot initiative approved by voters. Nebraska and Oklahoma said that marijuana is being smuggled across their borders and noted that federal law still prohibits the drug.

Two conservative justices, Clarence Thomas and Samuel Alito, said they would have heard the case. 

By Lawrence Hurley - Reuters (Editing by Will Dunham)