Just months after Cory Monteith entered treatment for addiction struggles so fierce he once said he was lucky to be alive, the handsome young "Glee" actor was found dead in a hotel room, police said. He was 31.

The Canadian-born Monteith, who played star quarterback-turned-singer Finn Hudson on the Fox TV series, was found dead in his room on the 21st floor of the Fairmont Pacific Rim Hotel on Vancouver's waterfront at about noon Saturday, according to police.

Acting Vancouver Police Chief Doug LePard said there was no indication of foul play and "the cause of death was not immediately apparent."

Lea Michele, his "Glee" co-star and real-life girlfriend, is not commenting herself on Monteith’s untimely death.

Her rep told People magazine, "We ask that everyone kindly respect Lea's privacy during this devastating time.”

After hearing the news, Demi Lovato wrote on Twitter, “#RIPCoryMonteith... So unbelievably tragic. Please #prayforLea..”

Selena Gomez said the news "hurts." 

"I love you Cory," Gomez wrote in a tweet accompanied by a picture of her and Monteith hugging. "Rest in peace. My thoughts and prayers are with you and your family."

Fox and the producers of "Glee," including 20th Century Fox Television, called him an exceptional performer "and an even more exceptional person. He was a true joy to work with and we will all miss him tremendously."

"We are in shock and mourning this tragic loss," his representatives at Viewpoint Public Relations in Los Angeles said in a statement.

Monteith's body was found by hotel staff who entered his room after he missed his check-out time, LePard said. Monteith had checked into the hotel on July 6.

"We do not have a great deal of information as to cause of death," said British Columbia Chief Coroner Lisa Lapointe. She said further tests would be needed to determine how Monteith died.

"The exact nature of those examinations will depend on investigative findings within the next day or two as information is gathered from medical records and discussions with family take place,"she said.

LePard said Monteith had been out with people earlier and that those people are being interviewed.

Video and electronic records from the hotel indicate Monteith returned to his room by himself early Saturday morning, and he was believed to be alone when he died, LePard said.

Lapointe said he had been dead for several hours by the time his body was found.

In April, Monteith admitted himself to a treatment facility for "substance addiction" and asked for privacy as he took steps toward recovery, a representative said at the time.

This was not Monteith's first time in rehab. He received treatment when he was 19 and had previously talked about his addiction struggles, saying he had a serious problem and took just "anything and everything."

He told Parade magazine in 2011 that he was "lucky to be alive."

Monteith, who turned 31 on May 11, starred in "Glee"as a high school football player who puts his status and popularity at risk to join the glee club and its outcast members.

The show, with its pop music-based song-and-dance numbers and high-profile guest stars including Gwyneth Paltrow, became an immediate hit and made stars of its relatively unknown cast.

The series, which debuted in 2009, is in its fourth season.

On his Twitter account, Monteith described himself as "all, awkward, canadian, actor, drummer, person."

According to his biography on Fox's website, Monteith was born in Calgary, Alberta, and moved to Vancouver Island as a child. Before turning to acting, he held a variety of jobs including Wal-Mart greeter, school bus driver, roofer and cab driver.

"Thanks for always being kind Cory. You came a long way from hanging on the beaches in Vancouver with the gang pre-Glee," tweeted Gerard Funk, an actor from Vancouver who joined the "Glee"cast last year.

Based on reporting by The Associated Press.

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