UPDATED 12/07/10 11:54 a.m.

CHICAGO (CBS) — Fire crews were sent out after smoke and a burning smell were discovered in a ComEd vault downtown Tuesday morning.

The smoke was reported from the vault at Michigan Avenue and Madison Street.

At 9:30 a.m., ComEd crews were onsite at the Grant Park North Garage, responding to an outage caused by water dripping from the ceiling onto a ComEd transformer.

Around 10 a.m., while crews were trying to repair the outage, they noticed smoke from transformer and burning smell, due to the water dripping, ComEd said.

By 11:50 a.m., power was still partially out at garage, but it still has emergency lighting. Crews were on the scene working to restore power.

There were no reports of injuries.

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