Thousands of homes and businesses lost power as the first nor'easter of the season moved through Massachusetts.

Over 4,100 customers had no electricity as of 4:30 p.m. Monday, according to the Massachusetts Emergency Management Agency (MEMA).

Milford, Medfield and Brockton had the most outages.

"The heavy rain and strong winds in the forecast could bring down trees or tree limbs onto electric lines and equipment, causing power outages. We're taking all appropriate steps to ensure our crews are ready to respond to any damage to the electric system or outages caused by the weather, including increasing staffing levels," an Eversource spokesperson said in a statement.

Eversource said if you lose power, stay away from any downed wires and make sure pets keep away too. Any downed wires should be reported to 911. To report a power outage to Eversource, visit their website or call 1-800-592-2000 for eastern Massachusetts or 877-659-6326 for western Massachusetts.