A woman who visited a beach in Maryland on Sunday was planted in the chest last week on an East Coast beach by a loose umbrella.
Ocean City spokeswoman Jessica Waters said the screen had been lifted from the floor before the 54-year-old woman was impaled in the chest.
Waters said the woman was still conscious after the incident, but that her condition was unknown at the time. Her name was not released immediately.
A witness said the woman was impaled by the forming end of the umbrella used to drive in the sand.
Waters said a Maryland state police helicopter took the woman for medical treatment. She told the Washington Post that paramedics cut off part of the umbrella shaft to facilitate transportation to the hospital.
Last week, a woman was impaled by a parasol on the shores of New Jersey. The authorities said that part of the screen pierced the woman's ankle after being carried away by the force of the wind.
The Associated Press contributed to this report.