Jon Hamm and Jennifer Westfeldt have split after 18 years together, they confirmed today.
"With great sadness, we have decided to separate, after 18 years of love and shared history," the couple said in a joint statement. "We will continue to be supportive of each other in every way possible moving forward."
Hamm, 44, and Westfeldt, 45, were plagued by rumours about their relationship earlier in the year when Hamm was completing rehab, but they both claimed they were untrue.
They were last seen together on July 22, canoodling at a Wet Hot American Summer: First Day of Camp afterparty.
The two started dating in 1997, and have appeared in films together.