(LOS ANGELES) -- Glee star Cory Monteith has checked into rehab. His rep tells People the actor "has voluntarily admitted himself to a treatment facility for substance addiction."
The 30-year-old, who stars as Finn Hudson on Fox’s music-themed comedy-drama, has been struggling with substance abuse for some time.
His representative added, "He graciously asks for your respect and privacy as he takes the necessary steps towards recovery."
In a 2011 interview, Montieth said he had entered rehab when he was 19.
He is currently dating Glee co-star Lea Michele. She tells People, "I love and support Cory and will stand by him through this."
She adds, "I am grateful and proud he made this decision."
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