DENVER (CBS4)– More than a dozen buildings, most of them high rises, were without power in downtown Denver on Monday morning, impacting hundreds, maybe thousands of customers. Power was restored by 3 p.m. Monday.

Xcel Energy initially told CBS4 that crews were working on the problem early Monday morning and finally restored power to everyone more than 12 hours after the initial outage.

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(credit: CBS)

The reason behind the power outage was a failure at the Lacombe Substation about 12:30 a.m. Monday.

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(credit: CBS)

The outage affected two areas, one in Lodo from 4th to 9th Streets along Market and Larimer, that five-block area includes Larimer Square; and Lawrence to Champa from 15th to 17th, which affected the 16th Street Mall and one block in either direction.

Denver police officers were directing traffic downtown at some intersections.

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In some cases, Xcel has one building listed as one customer, so the customer outages could reach more than 1,000 people.