One person was hurt in a two-alarm blaze in Williamsburg this morning, authorities said.

The fire started about 9:30 a.m. in the second floor of a 3-story home on Maujer Street near Leonard Street, according to an FDNY spokesman.

Firefighters extinguished the flames about 10:05 a.m. It was not immediately clear what sparked the fire.

EMS treated one person with minor injuries at the scene.