At approximately 4:20 am on Monday December 6, Ephrata Police were dispatched to 202 Mortar Lane in Ephrata Borough for a weapons call.

According to the dispatch, the man was brandishing a rifle in the home. Active shots were reported as officers responded.

Police arrived to fine a 19 year old female dead from the gunfire. They also found a 61 year old male of the same address, dead from an apparent self-inflicted gunshot wound.

The preliminary investigation, which included witness interviews and crime scene analysis, suggests that his incident was a murder/suicide.

Three other residents of the home were unharmed. Authorities say the public is not in danger.

The Lancaster County Coroner's Office was called to the scene.

This is a developing story. Stay with CBS 21 News for more updates.