The sister of CNN host Don Lemon passed away in an accidental drowning.

Fifty-eight-year-old L’Tanya “Leisa” Lemon Grimes was Lemon’s oldest sister. Grimes reportedly tripped and fell into a pond in Livingston Parish, LA on Wednesday. Lemon posted about the death on Thursday and asked his Twitter followers to keep his family in their prayers.

“Thanks everyone for your words of sympathy,” the news anchor wrote on Thursday. “Please keep my family in your prayers. Leisa was my oldest sister & partner in crime growing up. Always had my back.

“The Lemon/Grimes family would like to thank everyone for their condolences and prayers at this time,” the family said in a statement according to “Our family has suffered the tragic loss of L’Tanya ‘Leisa’ Lemon Grimes and we are leaning on each other for strength at this time. We appreciate privacy as we grieve the loss of our loved one.”