The mayor of La Prairie, a suburb of Montreal, died this weekend after wasps attacked her outside of her cottage.

Lucie Roussel, 51, stepped on a wasps’ nest Sunday while out walking and was stung some 15 times on her legs, her friend told the Globe and Mail. La Prairie spokeswoman Chantal Charron told CBC News paramedics administered an EpiPen at the scene but it had no effect. Roussel was pronounced dead at a nearby hospital.

It remains unclear if Roussel had a known allergy to wasps, which unlike bees can sting repeatedly.

The town lowered its flags to half-mast on Monday, the National Post reported, and the mayor of  Montreal, Denis Coderre, issued a statement that afternoon, saying city hall “has been profoundly affected by the death of this passionate municipal politician.”

Roussel recently won her third term as mayor of La Prairie. She had been the mayor since 2005, the National Post reported.

She leaves behind her 18-year-old daughter, Constance, and 19-year-old son, Antonin, according to the Globe and Mail.

“I feel just infinite sadness, so much pain for them,” her friend Hélène Ste-Marie told reporters. “She was just so full of life.”

Map shows La Prairie and Stratford in Quebec. Click on markers for more details.