Police are investigating reports of gunshots Wednesday around Columbia and Pine streets near Clement G. Morgan Park in the neighborhood known as Area IV/The Port – the third such incident this year.

Police responded to the reports of gunshots at 2:53 p.m. There are no reported injuries or victims, but police found shell casings at Washington and Pine street, said Jeremy Warnick, director of communications and media relations for Cambridge police. One parked vehicle was struck multiple times.

One witness reported seeing a black sedan speeding after the gunshots were fired, Warnick said in an email.

The last two reports of gunshots fired without reported injuries or victims were both in the Area IV/The Port neighborhood – at 9:37 p.m. Feb. 22, when two blank shell casings were found near 225 Windsor St., Warnick said, and at 6:45 p.m. Feb. 2, only about one-third of a mile away from Wednesday’s report at Harvard and Dennis streets, close to Kendall Square. Before that, the most recent such report was last year: June 7, near Donnelly Field in the Wellington-Harrington neighborhood neighboring to the north; also in 2015, the city’s ShotSpotter technology detected gunshots in Central Square just after 10:30 p.m. April 20.

“The area hasn’t seen much activity of late, aside from a slight increase in housebreaks,” Warnick said of the neighborhood around where shots were reported. (There was a nonfatal shooting with a victim, however: A man suffered a gunshot wound to the leg at about 1:45 p.m. Feb. 19 at Putnam Avenue and Magee Street after an argument with another man, police said.)

Rasaun Nichols, 31, was killed with gunfire Aug. 12 on Windsor Street in Area IV.

ShotSpotter detected the Wednesday gunshots as well, Warnick said. The technology uses sensors to identify gunshots out of a city’s background noise. It is in a two-year trial in Cambridge as well as in Chelsea, Everett, Revere and Somerville paid for by a grant from the Department of Homeland Security filed through those communities’ Urban Areas Security Initiative group.