Three persons were critically burned early yesterday in a fire that allegedly was set in a two-story rooming house at 2112 10th St. NW, D.C. police reported.

A woman suspect was arrested and charged in the incident, police said.

The three injured men, William Singleton, 57, Charles McDonaiels, 65, and Douglas Rogers, 64, all of the 10th Street address, were taken to the burn unit of Washington Hospital Center after the blaze.

Rogers and McDaniel each suffered burns over 70 percent of their bodies and Singleton was burned over 40 percent of his body, according to hospital officials.

Arrested and charged with arson in the blaze was Gwendolyn Frye, 30, of 501 Long-fellow St. NW, police reported.

Police said the fire, which was reported at 4 a.m., broke out on the first floor of the building and spread quickly to the floor above. The three injured men apparently were in separate rooms on the second floor at the time, fire officials said.

Investigators said the fire started shortly after a fight inside the house during which Frye was stabbed and slightly wounded by another woman.

Police said last night that they had not yet determined what precipitated the argument or precisely how the blaze was set.

The blaze gutted the first and second floors of the building, fire officials said. No official estimate of damage was available.