LOS ANGELES, Feb. 23 (UPI) -- "Star Trek" actor Leonard Nimoy was taken to a Los Angeles hospital for chest pains Thursday.
Paramedics were called to the actor's home in Bel Air, Calif., to transport him to UCLA Medical Center.
Nimoy has been hospitalized off and on over the past few months. He announced he had chronic obstructive pulmonary disease in early 2014 after years of smoking.
"I quit smoking 30 yrs ago," he tweeted at the time. "Not soon enough. I have COPD. Grandpa says, quit now!! LLAP."
LLAP is the shorthand Nimoy uses for his "Star Trek" character's catch phrase, live long and prosper.
It's not clear if Nimoy remains hospitalized Monday. His Twitter account was active Sunday and Monday.