(CNN) A British girl seen by thousands in a heartbreaking photograph that her father said showed "the darkness that is childhood cancer" has died, he announced in a Facebook post. Jessica Whelan, of Clayton-le-Moors, England, was 4. "I feel both sadness and relief in informing you all that Jessica finally found peace at 7 o'clock this morning," wrote her father, Andy Whelan. "No longer does she suffer, no longer does she feel the pain of the physical constraints of her body. In it, Jessica can be seen with tears rolling down her cheeks, her eyes closed as her body tenses upward in pain.

Source: CNN November 21, 2016 22:41 UTC