SPRINGFIELD -- A Dominican national deported after a drug trafficking conviction in the late 1980s was sentenced Friday to six months in prison after authorities here found him living under an assumed name following another drug arrest.

Franciso Siri, aka Javier Ciravello Perez, 48, was discovered by officials at the Hampden County House of Corrections 25 years after his deportation back to the Dominican Republic.

Siri in 1983 was admitted to the U.S. as a lawful permanent resident, court records show. By 1989 he had been convicted of cocaine trafficking, and was ordered deported in 1992.

In October 2017, a task force member for the U.S. Office of Homeland Security Investigations (HSI) was notified that a man using the name Javier Perez had been arrested for drug trafficking and was being held at the Hampden County jail.

"Perez" agreed to an interview and told investigators he was born in Puerto Rico and was a United States citizen. He told agents that his parents were dead, he had never been arrested and had never left the U.S., never mind having been deported.

He claimed not to know a lot about his home island. "He does not know a lot about Puerto Rico. When he was little, his parents traveled all the time," an affidavit written by an HSI agent states. He also made up schools he attended and gave a fake social security number.

Federal agents learned Siri's true identity through fingerprints and photographs.

After running his fingerprints, authorities discovered he had been sentenced to 12 to 15 years in state prison in Walpole in 1989 and faced a deportation order, but was arrested and charged with cocaine trafficking in Springfield on Oct. 12.

Siri pleaded guilty Jan. 19 in U.S. District Court in Springfield to unlawful re-entry of a deported alien. He is slated for deportation back to the Dominican Republic once again.