Forty-four hundred utility customers had to do without yesterday as outages hit homes and businesses in Haverhill, Lawrence and North Andover.
Later night, 3,200 customers in Haverhill found themselves in the dark.
The Haverhill outage was blamed on a tree limb that fell on power lines on River Street.
The Haverhill outage was first reported at 8:32 p.m., according to David Gray, spokesman for National Grid. Gray said he expected power would be restored to all customers by 9:30 p.m.
Earlier yesterday, just before 1 p.m., about 1,200 homes and businesses in North Andover and Lawrence lost power, including The Eagle-Tribune.
In the Lawrence and North Andover outage, National Grid said power to 80 percent of the people was restored by 1:30 p.m. However, the cause of the outage is still undetermined. At 1:25 p.m., power returned to The Eagle-Tribune.
According to North Andover police, customers on the following streets in North Andover were effected: Royal Crest Drive, Turnpike Street, Wilson Road, Berkley Road and a portion of Andover Street. In Lawrence, portions of Withrop Avenue and surrounding streets also lost power.
North Andover police said the source of the problem was unknown, but said National Grid crews were at the corner of Wilson Road.