08/03/2007 at 05:00 PM EDT
Good Morning America
anchor Robin Roberts's surgery for breast cancer on Friday was "very successful" and she has gone home from the hospital, according to ABC.
ABC News spokeswoman Bridgette Maney said in a statement: "The tests following her surgery take some time to process, so when we have more information we will update you."
Added Maney, "Thank you for your thoughts and prayers for Robin."
On Tuesday, Roberts, 46, told viewers
on her show, "I didn't want you to hear it from anyone else. ... I have breast cancer, as my family here [at ABC] knows, and my family at home knows. And I'm very, very blessed and thankful that I found it early."
The next day, Meredith Vieira and Matt Lauer, on NBC's rival Today
show, affectionately wished Roberts their very best, and Lauer even joked, "if you're watching, Robin – which we know you're not."
On Friday's GMA
, where Roberts has been a co-host since 2005, co-host Diane Sawyer acknowledged the flood of get-well e-mails Roberts had received at the network, and said they had all been printed out and delivered to Roberts as a source of enormous comfort and support to her and her family.
Roberts's mother and sisters came from the Mississippi Gulf Coast and New Orleans to be at her side during the operation, the Associated Press reports.
The former college basketball star and sportscaster, who does not have a history of breast cancer in her family, grew up in Pass Christian, Miss.