Runkle School Principal Genteen Jean-Michel has taken a sudden leave of absence, with Vice Principal Donna Finnegan stepping in as acting principal, according to an email from Interim Superintendent Ben Lummis.

In an email sent to parents Wednesday, Lummis did not give a reason for Jean-Michel’s leave of absence, which went into effect Thursday. However, he offered reassurance that “the students, staff and families have been and will remain our first priority during this period of transition.”

Jean-Michel joined Runkle in 2017 and previously had two decades of experience in the Boston Public Schools system, first as a teacher and then as a principal. The Brookline TAB has reached out to her for comment.

Brookline’s Senior Director of Teaching & Learning Dr. Mary Brown, Special Education Director Nadene Moll and Director of Autism and Inclusion Programming Melissa Devine will support Finnegan and the Runkle School community during this transitional period, according to Lummis. They will be on site on a rotating basis as the district identifies an experienced leader to serve as acting vice principal, he said.

“We should all have full confidence in the Runkle staff and leadership,” Lummis wrote. “They will continue to support your children every day and make sure they receive a high quality education in a caring and positive school environment.”