Oklahoma authorities say more marijuana will likely end up in the state after a new law took effect in Colorado legalizing the recreational sales of the drug.

Cimarron County shares a border with Colorado. Sheriff Bob White tells The Oklahoman that his county has seen a steady flow of marijuana coming from Colorado for several years.

The Colorado law that took effect Wednesday allows the sales of marijuana for recreational use for adults 21 and older.

Mark Woodward, a spokesman for the Oklahoma Bureau of Narcotics and Dangerous Drugs Control, says Oklahoma will likely see more marijuana because of the law change in Colorado. He says the state saw a boost in marijuana activity after Colorado legalized medical marijuana in 2010.