An 80-year-old woman was fatally struck by a Peco truck Thursday afternoon in Northeast Philadelphia, police said.

Sister Frances Antoinette, a nun who taught theology at Archbishop Ryan, was crossing Academy Road in the area of Morrell Avenue just after 2:30 p.m. when she was hit by the truck, which was heading south on Academy, police said. Medics took Sister Antoinette to Jefferson Torresdale Hospital, where she was pronounced dead at 3:34.

Police were investigating the cause of the accident, and no other details were immediately available.

Tom Brubaker, spokesperson for Peco, said the utility company was conducting its own investigation.

“Our concern, thoughts and prayers are with the family of the deceased,” Brubaker said in an email.

Archbishop Ryan released a statement on Facebook about Sister Antoinette: