TLC has cancelled the "Kate Plus 8" series, with the final episode to air Sept. 12.

The announcement came Sunday to end the six-year hit reality television show, though the reason is unclear.

"TLC has decided not to renew another season of 'Kate Plus 8,'" a spokesperson for the show said in a statement Monday. "By the end of this season, 'Kate Plus 8' will have hit the 150-episode mark (including Jon & Kate Plus 8), an exceptional milestone. TLC hopes to check in with Kate and the family periodically with specials in the future."

Formerly "Jon & Kate Plus 8," the show centered around the Gosselin family with eight children, twins and sextuplets, in Wernersville, Pa. After Jon and Kate Gosselin divorced in 2009, the show only featured Kate and her kids.

Kate Gosselin tweeted a message in 8 parts to fans regarding the cancellation of the show:

"We've had a great run! Six years of whirlwind funfilled adventures thanks to TLC and our many many supportive &diehard fans! While it is very sad for me and the kids (there were many tears at the breakfast table this morning!), we are looking forward with great anticipation to our bright future! As is very typical for me, I am choosing to see the positive in this situation and I am excited to consider the many more invigorating opportunities that may come my way!I poured my entire self in2 last 6 yrs of 'Kate+8′ & I can't wait2have the chance2challenge myself again w future endeavors! In the meanX,I hope 2have more time4motivational speaking,book writing &other fun work opportunities that come my way...And maybe even some dating??!! We wish our fans well. And remember, this is not 'goodbye'.I prefer to say 'See you around!' Xoxo"

Jon Gosselin told Radar that he is "very relieved" the show has been cancelled. "Contracts have to end at some point. I think everything had run its course and it was time to come to an end anyways," he said.

Gosselin also expressed relief regarding his children, after a high-profile lifestyle has broken apart his family. "I hope that this will bring more privacy to my children and that they can get the proper attention they need for any personal issues they might have in the future," he said.

TLC reports they will feature specials sporadically to update viewers on the Gosselin family after the last episode airs on Sept. 12.