Jamie Zimmerman Jamie Zimmerman

Jamie Zimmerman, 31, was on vacation alone in Hawaii when she slipped on a rock and was swept away by the current, Yahoo News reports. She worked as both a doctor and reporter for ABC News, serving as an on-air medical analyst for their news programs.

Zimmerman's mother announced the news on her daughter's professional Facebook page.

"On Monday my precious daughter Jamie Lauren slipped on some rocks at the mouth of the Lumahai River on Kauai, Hawaii and was swept out to sea," wrote Jordan Zimmerman. "Lifeguards and paramedics rushed to rescue Jamie, but were not able to resuscitate her."

Celebrity deaths in 2015

Jamie Zimmerman attended UCLA for her undergraduate degree, where she was awarded the Charles E. Young Humanitarian Award, and earned her medical degree from Mount Sinai School of Medicine. She traveled extensively for her humanitarian work, including aiding Congolese refugees in Zambia, hospital patients in India, indigenous people in Peru, and students in Uganda. The doctor also served as a United Nations Global Health representative in Haiti.

As a teenager, Jamie Zimmerman had been interested in acting, and appeared in small roles on shows like 7th Heaven and Boston Public under the stage name Jamie Lauren.

ABC News President James Goldston sent a notice to the entire staff about her passing.

"Jamie touched so many of us across ABC News," he wrote, according to CNN. "We will miss her."