Waltham June 19, 2023 6:23 pm Eversource responds to Waltham after power surge causes thousands of outages, possibly sparked fire In all, Eversource says about 6,000 customers lost their electricity because of what happened Monday in Waltham. US & World Videos 4:09 Budgets, staffing, and social media can all impact violence in schools, administrators say 2:35 Sumner Tunnel closed for weekend 2:16 Bruins fans disheartened by season-ending loss 20:21 Karen Read trial: Jen McCabe testifies ‘hos long' search was made after John O'Keefe was found 3:17 Featuring ‘age-friendly' employers