BALTIMORE (AP) — A Dutch national and registered sex offender who has lived in the U.S. illegally for more than 40 years and fraudulently obtained social security benefits has been sentenced.

Seventy-seven-year-old Fredericus Slicher was sentenced to three months in prison in federal court in Baltimore on Friday. After Slicher completes his sentence, he will be transferred to the custody of Immigration and Customs Enforcement pending deportation. He was also ordered to pay nearly $50,000 in restitution for social security and Medicare benefits he unlawfully received.

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Officials say Slicher arrived in the U.S. in 1967 on visas which expired in 1969. Authorities say he obtained forged documents and in 2010, began collecting benefits.

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According to federal officials and online records, Slicher was convicted of a 3rd degree sex offense in Maryland in 2004.

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