Two of Curt Schilling’s children, Gehrig and Gabby, tweeted news that their father underwent surgery for his cancer on Monday.

Schilling, the former Red Sox pitcher and Hall of Fame candidate, announced last week that he had cancer without disclosing what kind. Until his kids’ tweets, little further news had come out regarding either his treatment or prognosis.

On Monday, his daughter tweeted: “Dads surgery went really well. Now he’s in recovery. #GodBless.’’

His son tweeted out: “Recovery’’ that included a photo of his father, smiling faintly, in a hospital bed.

Prior to his children’s tweets, Schilling remained quiet about his condition other than to send out a pair of tweets a couple of days after the announcement. The first one said, “Overwhelmed at the well wishes, and prayers. Bless all of you. No pity or sympathy needed, I’ve been beyond blessed. I’m ready for this.”

The second said, “One more thing, the world goes on after you leave, change it while you’re here.”

Previous tweets from Gehrig included “Sucks that it takes something so negative to realize all the positives in your life. So blessed to have so many people that care about us” and “You can say a lot of things about him but one thing you can’t say is that he’s not a fighter. #loveyou #Blessed #roadtorecovery.”