St. Rose of Lima Church in Newtown has been evacuated. State police have responded to the church, according to NBC reporter Audrey Washington.
A noon mass was being held at the Roman Catholic Church at 46 Church Hill Road.
Witnesses at the mass said police entered the church and told parishioners that a threat had been made against the church and the surrounding area and that everyone had to leave immediately.
More than a dozen State Troopers armed with assault rifles entered a home next to the church, according to Washington.
Parishioners and news media were told to leave the church property.