Kiefer Sutherland Is Not Dating Sofia Karstens
05/07/2014 AT 04:45 PM EDT
The 24: Live Another Day star, 47, is not dating actress Sofia Karstens, his rep tells PEOPLE, while a source adds that the two have gone out "once or twice, but there's nothing more to it."
The two were briefly linked romantically after spending time together in New York City, where Sutherland promoted his return to the hit series.
Karstens, 37, is legally separated from Dazed and Confused actor Jason London, and Sutherland was previously married to Elizabeth Kelly Winn and Camelia Kath.
The TV star will next be seen starring alongside his father, actor Donald Sutherland, in the western Forsaken.