Vineyard schools superintendent James H. Weiss confirmed yesterday that Daniel Murphy, a music teacher at the Martha’s Vineyard Regional High School and director of the high school Minnesingers, has been placed on paid administrative leave indefinitely pending the outcome of an internal school investigation and also a separate police investigation.

Edgartown police have also confirmed they are conducting an investigation into Mr. Murphy for possible criminal conduct.

The reasons for the investigations have not been disclosed.

“It’s an ongoing personnel matter, and that’s really all I can say at this point,” Mr. Weiss said.

Edgartown police detective Craig Edwards said no charges have been brought against Mr. Murphy and that the investigation is ongoing.

“There is an investigation, and we are working with the school. Officials [at the high school] have offered their full cooperation,” Detective Edwards said.

Mr. Murphy has been a music teacher at the high school since 1996, and took over as director of the Minnesingers choral group soon after he came onto the school staff. He lives in Edgartown.

Mr. Weiss said a substitute teacher is filling in for Mr. Murphy in his absence.