Methuen firefighters on Saturday had to rescue an 86-year-old woman who was apparently left behind inside a dialysis clinic that had closed for the day, officials said.

Rescuers came to the Fresenius Medical Care center just before 4 p.m. to help the woman, who is from Wilmington, according to Deputy Fire Chief Scott Sullivan.

“She was the only one there. Family members had been called,” Sullivan said. Firefighters used a rapid-entry system to get inside, he said.

“Evidently she was left on the chair,” he said, but she had already gotten treatment and did not need further medical assistance.

An ambulance brought the woman to her home in Wilmington, where she was reunited with her family, Sullivan said.


Jon Stone, a spokesman for Fresenius, said in a statement Sunday that “our patients’ care and safety are our top priorities.”

“This is an issue of great concern and we are looking into the matter,” he said.

Alexandra Koktsidis can be reached at alexandra.koktsidis@globe.com. Follow her on twitter @akoktsidis.