Update: Wal-Mart Open After Morning Electrical Fire

The responded to a small electrical fire at the on Hudson Drive at 6:46 a.m. today.

The store is open 24 hours a day, but no one was injured, said Fire Captain Steve Groves. 

"A leaky roof caused their uninterruptible power supply to arc and a very small fire broke," said Groves. "It was extinguished with a portable fire extinguisher."

There is "minimal damage" to the store, but Groves said it could be costly because the fire damaged the power supply for most of the computers and cash registers in the store.

Wal-Mart was closed after the fire, but reopened around noon today, a store employee said.