PITTSBURGH (AP) - The brother of Pennsylvania twins whom child welfare workers have been unable to locate for at least 10 years has been charged with lying to police by pretending to be one of them.

Datwon Fowler, 18, remained jailed Friday on accusations he sent Penn Hills police a phony Facebook message on behalf of his brother, Ivon, and then a text message on Thursday, claiming to be Ivon. The text said he and his sister were safe and sound in Atlanta.According to a criminal complaint, Fowler told investigators he sent the message so police would stop bothering him and his mother about the twins' whereabouts.Ivon and Inisha, believed to be about 17 now, are two of Patricia Fowler's six children. The 47-year-old Penn Hills woman was charged last week with giving police false and conflicting information about the twins and their well-being, at one time even claiming she sold them for $2,000 each to a woman she barely knew. She has since recanted that story.Police Chief Howard Burton said Friday that the arrest of Datwon Fowler further clouds an already confusing investigation that has police wondering whether the twins are even alive. However, the only thing Patricia and Datwon Fowler have consistently told police is that the twins are OK.Police have checked with the National Center of Missing and Exploited Children and found no trace of the twins, and a search of other databases in various states produce no evidence they've even ever attended school.Patricia Fowler is free on bond and faces a preliminary hearing Monday on charges of endangering the welfare of children, obstructing a child welfare investigation and concealing the whereabouts of the children. Datwon Fowler is charged with making false reports to police, obstructing a child welfare investigation, criminal use of a cellphone and conspiracy.His preliminary hearing is Aug. 29.Police filed the charges against Patricia Fowler because they went to her home June 20 at the request of the Allegheny County Office of Children, Youth and Families to take all her children.They removed four children only to have the agency call back July 6 and tell police there should have been six children there.