Fukuoka prosecutors confirmed Friday they have dropped the case against an American man now back in the U.S. who had been arrested and later freed after he tried to retrieve his children from his ex-wife.

Christopher Savoie was arrested Sept. 28 in Fukuoka as he tried to enter the U.S. Consulate with his 9-year-old son and 7-year-old daughter. Ex-wife Noriko Savoie had violated a U.S. court custody decision by taking the children from Franklin, Tenn., to her native Japan a month earlier, but Fukuoka police were pursuing parental child-abduction charges against him from trying to get his offspring back.

Christopher Savoie, who is back in the U.S., was told Japanese authorities are closing the case, his spokesman, Wes Yoder, said Thursday.