After an employee of the St. Martin's Episcopal Church spotted a person on the roof of the building, Houston police conducted a security sweep at the church, authorities said Wednesday morning.
The church will host the funeral of former first lady Barbara Bush, who died Tuesday at her Houston home after ending medical care for COPD and congestive heart failure.
A man was spotted on the roof overnight and told an officer, "I'm just exploring."
A police dog was then used to to search inside of the building.
