ANN ARBOR, MI - Police are investigating a reported slashing that occurred in downtown Ann Arbor on Tuesday, Nov. 15.

A woman in her early 20s reported to police that she was cut about 2:20 p.m. Tuesday in the 600 block of Liberty Street, as she was passing the Michigan Theater, Ann Arbor police Sgt. Aimee Metzer said.

The woman told police an unknown white man, about 45 years old, came from behind her and cut her on the left cheek with something, possibly a safety pin, Metzer said.

The woman was wearing earphones at the time and therefore did not hear whether the man said anything, but believed the incident may have been related to a safety pin she was wearing, Metzer said.

Safety pins worn outside clothing have been used in the United Kingdom to silently protest Brexit and to show solidarity with minorities who feel threatened after the vote to leave the European Union. They have been similarly used in the United States following the election of Donald Trump as president.

The woman suffered a superficial injury to the face, Metzer said.

Further information on the incident was not immediately available.