Lara Bauch, a 23-year-old student who lives nearby, told the DPA news agency that "there were about four bursts of gunfire - several shots were fired in each burst - with gaps lasting roughly 20 seconds to a minute".
She said that from her window she could see a person frantically running from the ground floor to the first floor. "The man was wearing dark clothing and moving fast," she added.
An alert was sent on the federal warning app, NINAwarn, at about 21:00 local time telling locals that "one or more unknown perpetrators shot at people in a church".