Part of a 90-year-old stained-glass window at Costa Mesa's First United Methodist Church was shattered when a vandal threw a brick through it, church leaders said.
The vandalism occurred sometime between late Monday and early Tuesday, the Rev. Amy Aitken said.
The window, known informally as the Shepherd's Window, is in the church's southern wall along West 19th Street.
The stained glass, which contains a depiction of Jesus, is protected by a quarter-inch outer layer of glass, a portion of which was destroyed. Church leaders believe the vandal grabbed a brick from nearby and threw it at the window with enough force to break through both layers.