The body of a 22-year-old Herndon woman, reported missing after she failed to return home last week from her job at Dulles International Airport, has been discovered in a marshy area near the Philadelphia International Airport, law enforcement officers said yesterday.

The body of Carmen M. Sandlin of 513 Merlins La. was found Monday by a man outside Lester, Pa., said Officer W. Fife of the Tinicum Township police.

Her death is being investigated as an apparent homicide, according to Lt. Duane C. Atkisson of the Herndon Police Department. An autopsy is being performed to determine the cause of death, he said.

Sandlin was reported missing by her roommate on June 3, a day after she failed to return home, according to Atkisson.

"We were investigating it as a missing person," Atkisson said.

According to Ed Pascoe, manager of The Willows Tavern near the site where the body was found, a man who lives in a motel across the street from the bar found the body in a light blue sleeping bag. It was partially submerged in a creek about 50 feet from the bar, he said.

Sandlin worked as a clerk-receptionist at Scalea's Airport Service Inc. at Dulles, according to an FBI spokesman.