Many Brookhaven residents were without power for just over half an hour Tuesday morning, as something “tripped” the main breaker at the North Brookhaven substation, Entergy Customer Accounts Manager Bill Howard said.

While the cause of the trip is under investigation, power is back on for all 2,686 customers affected.

Power went out at 7:14 a.m. and was restored at 7:40 a.m., according to Howard.

The power outage affected businesses and residences along Union Street, East Monticello Street, Old Highway 51, and Smith and Nola Roads.