Three persons were injured -- one critically -- and three were rescued yesterday after a fire erupted on the third floor of an apartment complex in the Woodlawn area of Fairfax County, fire officials said.

The two residents of the builiding who were hospitalized were Irene Von Haeger, 80, who was resported in critical condition at the Washington Hospital Center, and Garnet Frazier, 55, who was released after treatment for smoke inhalation at Mount Vernon Hospital. Firefighter Walter Brown was also treated for smoke inhalation.

More than 50 firefighters battled the three-alarm blaze at 8435 Graves St., just off Richmond Highway, for mor than 30 minutes, said spokeswoman Pam Wieger.

One resident, Angie Brooks, 15 said, ". . . A friend of mine tried to drag a lady down from there but he failed," Brooks said. "Then the firemen went up there and got her. She was burned all over."

The blaze gutted two third-floor apartments of the Woodlawn Gardens complex, and there was heavy smoke damage to two nearby units, Wieger said. Damage was estimated at $200,000. The cause of the fire was under investigation.

Fire officials said they did not know whether the apartments were equipped with working smoke detectors.