( CNN ) -- The bodies of a man and a girl were found inside a vehicle belonging to a suspect in an Amber Alert case , authorities said . Authorities believe 2-year-old Madeline Samaan-Fay was abducted by her father , Mourad `` Moni '' Samaan . An Amber Alert was issued Friday for Madeline , who was last seen a week ago in Sacramento . In a written statement , the FBI in Sacramento , California , said the bodies were found in Samaan 's vehicle Saturday night but did not identify the bodies , saying more information would be released later . The green Toyota 4Runner was found in a remote area of El Dorado County , near Placerville , California , the FBI said . `` The Amber Alert system has been put in place so that we can hopefully locate and safely take people back into custody and put the child back , if that 's the case , '' El Dorado County Sheriff 's Office spokesman Lt. Bryan Golmitz told CNN affiliate KCRA . `` When you end up with cases like this , it 's tough . '' Calls made Sunday afternoon to the FBI and sheriff 's office , inquiring about the identity of the two bodies were not immediately returned . In an earlier news release , the FBI described the father as a 49-year-old Egyptian-born U.S. citizen . The federal agency called the circumstances of the abduction `` particularly concerning , '' adding that officials have reason to believe that the child 's life may be in danger . The girl , Madeline , has brown hair and brown eyes , weighs about 28 pounds and stands 2 feet , 8 inches tall , according to the Amber Alert . The FBI was working on the case along with members of the Sacramento Police Department , the Sacramento County Sheriff , the California Highway Patrol and the California Department of Justice .
NEW : A sheriff 's spokesman says `` when you end up with cases like this , it 's tough '' Authorities are not yet identifying the bodies in the vehicle . The vehicle belongs to Mourad `` Moni '' Samaan . He was arrested on a charge of murder and is being held at the county jail.