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Yet more trouble with public transportation employees being accused of crimes in the D.C. area.

WMATA says a MetroAccess driver has been arrested on charges of sexual assault. Metro Transit Police arrested Jose Del Castillo, 55, on Thursday, after investigating a sexual assault reported by a MetroAccess rider on Jan. 28 in Prince George’s County.

Castillo has been charged with third-degree sex offense and second-degree assault.

According to a Metro press release, Castillo isn’t the only MetroAccess driver cops have suspected of sexual assault:

Metro Transit Police also have been investigating a January 3 report of sexual assault involving a different MetroAccess driver that took place at Sixth Street and Brentwood, NE. The U.S. Attorney’s Office in the District of Columbia has declined to prosecute the case at this time. The driver, 31, was hired on September 24, 2009, suspended without pay on January 3, 2010, and terminated on February 4, 2010.