Washington, Jumada II 14, 1434, Apr 24, 2013, SPA - Charges have been dropped against a Mississippi man accused of sending ricin-laced letters to President Barack Obama and others, according to a court filing Tuesday. The document was filed hours after Paul Kevin Curtis was released from custody. It says the ongoing investigation has revealed new but unspecified information. An FBI agent had testified in court Friday that no evidence of ricin was found at Curtis's home. Meanwhile, authorities were searching the home of another Mississippi man in connection with the case. --SPA 11:36 LOCAL TIME 08:36 GMT www.spa.gov.sa/1102386