Thornton police have taken a subject into custody after a SWAT standoff in the area of 136th and Madison Street Thursday evening.
The Thornton Police Department said their investigation is ongoing.
Law enforcement first got a call of shots fired in a backyard near 136th Avenue and Madison Street just before 5 p.m.
An officer with Thornton PD reportedly saw a person in the backyard of a house with a gun and then saw that person go into a house.
Police said they did not know if anyone else is in the house with them. Officers set up a perimeter around the home and called in their SWAT unit.
A reverse-911 call went out to nearby residents asking them to shelter-in-place during the standoff. Another one went out to let neighbors know. Officers also knocked on doors to let them know the hourslong stand off was over.