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Wichita, Kan. • A Mexican man accused of raping a 13-year-old girl on a Greyhound bus that traveled through Kansas had been deported 10 times and voluntarily removed from the U.S. another nine times since 2003, records obtained by The Associated Press show.

Three U.S. Republican senators — including Kansas' Jerry Moran and Pat Roberts — demanded this month that the Department of Homeland Security provide immigration records for 38-year-old Tomas Martinez-Maldonado, who is charged with a felony in the alleged Sept. 27 attack aboard a bus in Geary County. He is being held in the Geary County Jail in Junction City, which is about 120 miles west of Kansas City.

U.S. Sen. Charles Grassley, from Iowa and chairman of the judiciary committee, co-signed a Dec. 9 letter with Moran and Roberts to Homeland Security Secretary Jeh Johnson, calling it "an extremely disturbing case" and questioning how Martinez-Maldonado was able to re-enter and remain in the country.

U.S. Immigration and Customs Enforcement said it has placed a detainer — a request to turn Martinez-Maldonado over to ICE custody before he is released — with Geary County. ICE declined to discuss his specific case beyond its October statement regarding the 10 deportations.

Court filings show Martinez-Maldonado has two misdemeanor convictions for entering without legal permission in cases prosecuted in 2013 and 2015 in U.S. District Court of Arizona, where he was sentenced to serve 60 days and 165 days, respectively.

A status hearing in the rape case is scheduled for Jan. 10.

Records obtained by AP show Martinez-Maldonado had eight voluntary removals before his first deportation in 2010, which was followed by another voluntary removal that same year. He was deported five more times between 2011 and 2013.

In 2013, Martinez-Maldonado was charged with entering without legal permission, a misdemeanor, and subsequently deported in early 2014 after serving his sentence. He was deported again a few months later, as well as twice in 2015 — including the last one in October 2015 after he had served his second sentence, the records show.

ICE said in an emailed statement when it encounters a person who's been deported multiple times or has a significant criminal history and was removed, it routinely presents those cases to the U.S. attorney's office for possible criminal charges.