RIDGEFIELD, N.J. (CBSNewYork) — Prosecutors believe a fire that broke out at a Ridgefield Park, New Jersey church Sunday morning was suspicious.

The fire broke out at the First United Methodist Church on Cedar Street while a small service was under way, according to the Bergen County Prosecutor’s office.

Investigators late Sunday were not disclosing any details of the fire, except to say it happened inside the building.

There were no injuries.