A Dorchester sweep uncovered nine mopeds stashed at a Kenberma Road residence and resulted in three arrests as police step up enforcement of illegal scooter operations.

Holland Street near Davis Square was cordoned off after an early-morning assault involving an edged weapon. The victim was taken to a local hospital with non-life-threatening injuries.

A Fairhaven man was arrested after police say he used a sledgehammer to smash into the Pearl Vision storefront in Dartmouth; about $51,000 in sunglasses were recovered.

Firefighters and police responded to a water emergency between the Seaport and Logan early Thursday; officials have not yet released details. Marine units and harbor patrols were on scene.

Police arrested a 46-year-old Boston man after a Beach Street search turned up roughly 50 grams of suspected fentanyl. The seizure crosses Massachusetts' 10‑gram trafficking threshold.

Boston police say a 16‑year‑old was caught with a loaded Smith & Wesson SD9 as he left Community Academy in Jamaica Plain; the state issued a detainer and charges are pending.

Officers responding to a medical call in Malden encountered suspected fentanyl after an unsecured bag opened; no officers were injured.

Surveillance shows a man trapped at the base of a Davis Square escalator for more than 20 minutes before help arrived. His family is demanding answers.

A person was recovered from waters near the Nickerson Post in Quincy’s Squantum neighborhood on Wednesday night; police say the investigation is active. The individual’s condition has not been released.

A pre-dawn three-alarm fire ripped through Moozy's on Trapelo Road; crews pulled back after a floor collapse and no injuries were reported.

A person was struck and killed by an MBTA commuter rail train near the East Bridgewater–West Bridgewater line; transit police are assisting an active investigation.

A duck was found in Salem with an arrow lodged in its bill on Wednesday, alarming residents and prompting questions about how it was injured. Officials say trained rehabilitators should respond.

Patriots rookie Quintayvious Hutchins was arraigned in Newton on an assault charge; he pleaded not guilty and was released pending further hearings.