It has been nearly 16 years since the September 11th attacks on America, but the job of identifying the victims has still not come to an end.

The New York City's Medical Examiner's Office announced this week that it has identified another victim of that deadly day, USA Today reported.

The man, who is not being named at the request of the family, was the first to be identified since 2015.

New DNA technology was able to find out who the man was. Past tests came back with no results.

The September. 11 attacks killed 2,977 when hijackers crashed planes into the World Trade Center, the Pentagon and Shanksville, Pennsylvania.

So far 1,641 victims have been identified, but the IDs of 40 percent of them are still yet to be determined, The Associated Press reported.

The medical examiners are looking at bone fragments that were found it the wreckage of the Twin Towers.

The workers have examined the same bone fragments 10 or more times as new identification technology has been developed over the decade and a half since the attacks, the AP reported.