The alleged shooting happened on the 300 block of Greenwich Street in Reading Monday morning.
According to the FBI, 37-year-old Rafael Vega-Rodriguez opened fire on FBI agents. The agents did return fire. No injuries were reported.
It's unclear if Vega-Rodriguez was struck by bullets, and his whereabouts remained unknown for some time.
On Tuesday morning, the FBI confirmed that Vega-Rodriguez was taken into custody overnight, approximately 25 miles away from Reading in Leola, Pennsylvania.