"Chicago P.D." stars Sophia Bush and Jesse Lee Soffer may be rekindling their flame! The 33-year-old actress and the 31-year-old actor, who broke up in June after dating for nearly a year, were seen holding hands in New York City Sunday, sparking their romance rumors all over again, according to E! News. They have been spotted together a few times recently, and have even have remained fairly present on each other's social media pages.

"Sophia and Jesse just didn't work out," a source told Just Jared when they split. "They dated for about a year and then grew apart. They're still friends, though!"

It is unclear whether these two have been interacting recently because they're back together or simply just because they are co-stars. A "Chicago P.D." insider told E! News recently that the cast is very close and spends "every waking moment together" because they "all have really good chemistry."

On the crime drama, which premieres tonight, the two play detectives. They are both really looking forward to the third season of the hit show. "It feels really good," said Bush on "Today" Tuesday. "The show seems to just get deeper and more complex, and our writers aren't afraid of letting it be gritty and letting us look like we're really toeing the line between heroic and making mistakes. It's really fulfilling as an actor because it feels so creative and full."