NEWTOWN, Conn. (Reuters) - A Roman Catholic church in the town where a gunman shot dead 20 school children was evacuated on Sunday after a bomb threat was reported by officials during services.

After searching St. Rose of Lima church, police determined it was safe to re-enter, though the building remained closed for the rest of the day, an officer at the scene said.

The church is about a mile from Sandy Hook Elementary School, where a gunman killed 20 children and six adults and then himself on Friday.

Police on Sunday also warned of threats and false representations on social media sites, and said they were investigating for possible criminal violations.