A pedestrian died Friday evening in Somerville in an apparent hit-and-run, said Middlesex District Attorney Marian Ryan and that city’s chief of police, David Fallon.

The fatality was Allison Donovan, 40, of Somerville, officials said.

At approximately 7:15 p.m. Friday police responded to a report of a hit-and-run at Powder House Boulevard and Hardan Road, near Teele Square in West Somerville. Somerville tax records suggest Donovan owned a home on Powder House Boulevard near North Street, about three minutes’ walk from where she was struck. She was born in Cambridge and attended Lesley University, according to her obituary, and an educator with Watertown and Melrose public schools.

Donovan and another woman were found injured and taken to a hospital, where Donovan was pronounced dead. The second woman’s injuries were not life threatening.

Preliminary investigation suggests the driver was in a dark-colored, late-model full-size pickup truck with a black cover over the bed – possibly a Ford F-150 – and hit the pedestrians in a crosswalk. The pickup likely has front-end damage to the left side, officials said.

The District Attorney’s Office and Somerville police called it “an open and active investigation.”

Members of the public with information they believe will help identify the driver are encouraged to contact the Somerville Police Department (617) 625-1600, Exts. 7250 or 7254, which are staffed around the clock by officers. Tips may also be left anonymously through text: Begin a text message with 617spd and send it to TIP411 (847411).