Brittney Griner, a U.S. national team basketball player, will be detained in Russia until May, according to an NBC News report.

Griner, a center for the Phoenix Mercury, has played in Russia for the last seven off seasons, the news outlet reported. She was taken into custody last month for allegedly carrying cannabis vape cartridges in her luggage at the Sheremetyevo airport, near Moscow.

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“The court granted the petition of the investigation and extended the term of detention of U.S. citizen [Griner] until May 19,” TASS, a Russian state-owned news agency, reported, citing the Khimiki Court of the Moscow Region.

Griner’s alleged offense could carry a sentence of up to 10 years in prison, according to NBC.