LOS ANGELES (December 8, 2012)--R&B performer Toni Braxton says in a Tweet on Friday that she's been hospitalized because of "minor health issues" related to Lupus.

A spokeswoman confirmed the hospitalization but had no other details.

"But no worries!," Braxton wrote to fans. "I will be out any day now."

Braxton, 45, the singer of "Un-break My Heart," revealed two years ago she has Lupus, a potentially deadly autoimmune disease that killed her uncle.

She also suffers from a narrowing of the blood vessels in her heart.

Braxton said in a recent "20/20" interview that doctors told her the Lupus diagnosis meant her performing career would likely be diminished and the disease helped push her into a recent bankruptcy.