The fire started in the restaurant duct work on the top floor of the 17-story hotel and was extinguished before 3 p.m., fire officials said. According to its website, Contessa Ristorante is located on the hotel's top floor.

No injuries were reported.

The cause of the fire remains under investigation.

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In-depth news coverage of the Greater Boston Area. The hotel first opened in 1927 as the first-ever Ritz-Carlton in the U.S., according to its website. It remaind open under its original name until 2007, when it was sold to the Indian-based Taj Hotels and became Taj Boston. In 2018, it was purchased by Highgate Hotels and rebranded as The Newbury Boston. Earlier this year, U.S. News and World Report named it one of the Top 100 hotels in the country, coming in at number 68 overall.