QUINCY, Mass. -- The owners of a popular and historic bakery in Quincy were cleaning up Friday after an early-morning fire completely gutted the business.

NewsCenter 5's Steve Lacy reported that a fire broke out at Montilio's Bakery at about 5:30 a.m. The bakery has supplied cakes to three U.S. presidents, a queen and a pope. Fire investigators said it sustained about $400,000 in damages in the fire, which was likely caused by an electrical fire in the ceiling. There were no injuries.

"I was coming up Adams Street. It's about 5:45 a.m. and noticed all these lights and said, 'Gee. I wonder what is going on?' Then I got as far as I could, and I saw the smoke coming out of the roof, and I was devastated," manager Shelia McKinley said.

She's worked at Montilio's for about 20 years.

"I just couldn't believe it. It was just a nightmare," she said.

No one was inside when the fire started. Residents who counted on the neighborhood bakery for coffee and pastry said that they were shocked.

"I was shocked coming up that street, and I saw the glass everywhere," said Howard Cavanaugh, of Quincy.

"They have great pastries, great pizza. It is one of those places that everyone went to. It's been around for ages and ages, so hopefully they can rebuild it," said Brian O'Meara, of Milton.

Owner George Montilio said that the damage inside the building appears to be mostly cosmetic, and the floor and roof are intact.

The bakery's main production facility is in Brockton, where they make their famous wedding cakes.

"We are going to try to get all the cake orders, all the cake order slips, and make sure that we get everybody contacted and take care of their business for the weekend. The wedding cakes and all that part of the business is intact in Brockton, and it will go on as normal," Montilio said.

The bakery, which opened in 1947, supplied 10,000 desserts to President John F. Kennedy's inaugural ball. The shop also made cakes for the inaugural balls of Presidents Ronald Reagan and George H.W. Bush, and has served Queen Elizabeth and Pope John Paul II, according to the bakery's Web site.