A mother was struck and killed by a vehicle Monday evening, Aug. 17, near Chapman Avenue and Twinbrook Parkway in Rockville while walking with her young son, who survived with non-life-threatening injuries.

Rockville City Police and Montgomery County Fire and Rescue Service responded to the crash at approximately 8:25 p.m., according to the Montgomery County Police Department. Both the mother and child were transported to Inova Fairfax Hospital as critical trauma patients. The woman later died at the hospital.

The driver remained at the scene and is cooperating with investigators. MCPD's Collision Reconstruction Unit is investigating.

MCFRS chief spokesperson Pete Piringer reported on X that the vehicle slid onto an embankment after striking the pedestrians. The crash site sits about a five-minute walk from the Twinbrook Metro Station, near the Twinbrook Metro Plaza office building and a Guitar Center, according to Bethesda Magazine.

Police said the woman's name would be released after next of kin are notified. The child's age has not been disclosed.

No charges or citations have been announced. The investigation is ongoing.

Mounting pedestrian toll

The fatal crash adds to a troubling year on Montgomery County roads, including corridors in Bethesda and Chevy Chase covered by the county's Vision Zero safety plan. As of late July, the county had recorded 26 fatal crashes in 2026, including nine involving pedestrians, compared to 24 at the same point in 2025, according to Bethesda Magazine's July 23 report on county speed-limit reductions. The Monday night fatality was not included in that count.

Four other pedestrians were killed in separate crashes across the D.C. region over the preceding weekend, Fox 5 reported.

Montgomery County adopted its Vision Zero plan in 2018 with a goal of eliminating serious traffic injuries and fatalities by 2030. Progress has been slow: in 2025, the county recorded 18 pedestrian, bicyclist and other non-vehicle traffic deaths, down just one from 2024, with 678 pedestrian and cyclist-involved crashes overall.

County Executive Marc Elrich said during a July 23 media briefing, as Bethesda Magazine reported, that "we still have too many drivers who are driving way too fast." The county has since lowered speed limits on multiple residential roads.

The county's FY27 Vision Zero Work Plan, released Aug. 11, increased Pedestrian Safety Program funding 188% over nine years, from $1.78 million in FY18 to $5.12 million in FY27. The plan also reported a 29% reduction in serious and fatal collisions on designated high-injury corridors.

Anyone with information about the Aug. 17 crash can contact the MCPD Collision Reconstruction Unit at 240-773-6620.