Police recovered “multiple” shell casings from a gun being fired after responding to calls for possible gunshots early Sunday at Elm and Cambridge streets in the Wellington-Harrington neighborhood near Inman Square. 

Police found evidence that shots were fired into the second-story room of an Elm Street home, said Jeremy Warnick, director of communications and media relations for Cambridge police. “Fortunately, there are no known injuries or victims,” Warnick said in a press release.

The calls and activation of ShotSpotter technology, which listens for gunshots in the city, took place at around 3:20 a.m. Officers found the shell casings on the street after canvassing the area and speaking to nearby residents. A suspect was described to them as a black or Hispanic man wearing dark pants and shoes, and residents said he walked to and from the area via Cambridge Street.

There have been four similar incidents – with reports of early morning gunshots with no known victims – since March 31, but this one breaks the pattern by taking place in Wellington-Harrington; the other shootings within this 50-day stretch were in The Port neighborhood closer to Central Square.  

Police will continue to maintain an increased presence in the area as they investigate, Warnick said in a 10:18 a.m. email.

Anyone with information is asked to call Cambridge Police at (617) 349-3300. Anonymous reports can be left at (617) 349-3359; sent by text message to 847411 (begin your text with TIP650, then type your message); or by email by visiting CambridgePolice.org/Tips.