Residents were ordered to "shelter-in-place," reports said.
The county Sheriff's Department and Deptford Township police barricaded several blocks.
The unspecified incident involving the occupant of a home alarmed residents near Hurffville Road.
There was never any threat to the public, authorities said.
About 2 p.m. on Saturday, first responders were called to the1900 block of Pasadena Avenue on a report of a disturbance.
The tense standoff between police and a person allegedly barricaded inside the home lasted about five hours, reports said.
Swarms of helmeted officers descended on the property, according to CBS Philly Eyewitness News.
CHECK BACK FOR UPDATES
Click here to follow Daily Voice Marlton-Evesham and receive free news updates.