NEW YORK --Three people are hospitalized with minor injuries after fire broke out at an apartment in Williamsburg, Brooklyn. It happened just after 1 a.m. Sunday at a 7-story residential building at 869 Flushing Avenue. The fire was confined to a single apartment on the seventh floor. One person jumped from the apartment, and was taken to Elmhurst Hospital with non life-threatening injuries. Two others were transported to Woodhull Hospital with minor injuries. The fire was under control within 45 minutes. The cause of the blaze is under investigation.