A missing elementary school teacher in Maine who vanished from her home early last week was found dead on Friday afternoon after killing herself, PEOPLE confirms.

Children who were playing in the woods near the home of Kristin Westra discovered her remains, according to authorities.

An autopsy performed over the weekend determined Westra, 47, died by suicide, according to a statement from the Cumberland County Sheriff's Office.

The body of the mother of two, who disappeared overnight from her home late on Sept. 30 or early Oct. 1, was located deep in the woods behind her house in North Yarmouth.

According to her husband, Jay Westra, he and Kristin went to bed about 8 p.m. on Sunday. But Kristin, a teacher at Chebeague Island School, was gone when Jay awoke on Monday — leaving behind her phone, car and keys.