Man charged with second-degree assault in Portsmouth shopping cart dispute

Michael M. Mbwana, a Northwood resident, faces a felony charge of second-degree assault following a dispute over a shopping cart at a Market Basket parking lot in Portsmouth on February 27. The altercation reportedly escalated into violence, resulting in one individual being transported to Portsmouth Regional Hospital with non-life-threatening injuries. After an investigation, Mbwana surrendered to police on March 25, was initially held at Rockingham County Jail, and was later released on personal recognizance bail following his arraignment on March 26. Police responded to the incident around 10:40 a.m. and discovered multiple parties involved in the disturbance. Details about the specific circumstances of the assault remain limited as the investigation continues. This incident has drawn attention due to its unusual catalyst—a dispute over a shopping cart.