The fire broke out just after 5 p.m. Sunday at the Marriott Hotel on James Doolittle Boulevard in Uniondale.
ALSO READ | Raging fire in East Village damages historic church
Guests in the area were evacuated safely, officials say.
There are no reports of any injuries.
It is unclear how the fire started.
ALSO READ | 12 arrested, 10 cars seized during crackdown on Long Island street racing
* More Long Island news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube
Submit a News Tip