A bomb threat led to the evacuation of a church Sunday morning in the Connecticut town of Newtown, where 20 children were gunned down at an elementary school just two days earlier.

A Sunday morning service at St. Rose of Lima Church, located near Sandy Hook Elementary School, which was the site of Friday's massacre, was shaken when SWAT gear-clad police officers carrying guns arrived and ushered worshippers out of the pews, according to Fox News.

The parishioners who fled the church told the Associated Press that there had been a bomb threat made against their congregation. An AP photographer reportedly saw police officers remove an object covered by a red tarp from the church building.

Deborah Metz, a Trumbull, Conn., police officer on the scene, gave the all-clear after an hour in which police searched the church and adjacent buildings, the AP reported, but the church will be on lockdown for the rest of the day.

Adam Lanza, the school shooter, and his mother, as well as eight of the children he killed Friday, attended St. Rose of Lima, a Roman Catholic congregation, the AP reported.

Twenty children and six adults were killed at Sandy Hook Elementary School on Friday, according to police reports. Police have yet to address the bomb threat at St. Rose of Lima Church that was reported by churchgoers on Sunday.