Officers responded to the station on the report of a female victim chasing an adult male suspect who had taken an iPhone from her hands while aboard a Dublin bound train. As BART officers responded, Alameda County Sheriff’s Deputies managed to detain two individuals possibly involved in the theft. The victim, however, was unable to definitively identify either one of the subjects as the responsible(s) in the theft; the subjects were then released. An area search for the suspect, who is described as a Black male in his twenties and wearing a blue flannel shirt and blue hat, ended with negative results. The victim was not injured during the theft. The investigating officer requested train/station video.