Several sections of Vicksburg remained under a boil water notice this morning after a downed city power line leading to the city’s well field off Haining Road fell, causing a chain reaction of blown fuses that knocked out power to the city’s water treatment plant on Haining Road Wednesday morning

City officials immediately issued a citywide boil water notice, but altered it later in the morning to include the following areas in the city:

• Indiana Avenue to Clay Street from Mission 66 to U.S. 27.

• Martin Luther King Junior Boulevard from Farmer Street to Mission 66.

• Washington Street to Cherry Street from Clay Street to Speed Street.

The incident occurred about 5:48 a.m. Wednesday.

When the line fell, Public Works Director Garnet Van Norman said, it blew a fuse at the city’s No. 6 well, which in turn blew out a fuse on the Entergy line to the plant. When the Entergy fuse blew, it blew a fuse at the water plant knocking out power.

Attempts to start the plant’s backup generator failed, he said.

“We got it started, but when it cranked, it went down and we couldn’t restart it,” he said.

“We don’t know why the line fell,” Van Norman said late Wednesday morning. “There was no bad weather. We have an electrical contractor coming to look at it. Hopefully he can tell us why it fell.”

He said another contractor was expected to be at the plant Wednesday to examine the generator.

The shutdown was second time in three months an electrical problem knocked it out. In August, a short in the plant’s elevator caused a power outage that shut down the plant, forcing city officials to issue a citywide boil water notice. An internal electrical problem at the plant in 2013 shut it down and forced another citywide boil water notice.