Brigitte Nielsen has checked into a rehabilitation center for an undisclosed condition.
Speaking July 19 to the Associated Press, her manager Steven Tempone said "All I know is that it's something she did on her own free will and we're proud of her and wish her very well." He declined to reveal the location of the facility, or the nature of the actress' problem.
The tall, blonde actress and former model has appeared in such films as Red Sonja, Rocky IV, Cobra, and Beverly Hills Cop 2.
She was married to Sylvester Stallone from 1985 to 1987. She celebrated her 44th birthday on July 15.
"When she gets out we'll have a big birthday party, and Coca-Cola only," Tempone said.