as wusa 9's jim oxman tells us, the police are calling this case highly unusual. >> where are two young children and their mother? the search continues in montgomery county. at the germantown transit stop tonight as evening commuters climbed off busses to find help finding this woman and two children. she was last seen at this chick-fil-a nearby. sometime during this stop, katherine left the restaurant, unbeknownst to the father and has not been seen since that time. the children's father pressed him for answers about the exact whereabouts in recent days of the young ones. he told evasive stories and left according to police. >> this is a highly unusual case so i am deeply concerned here over their welfare. >> hoggle has no mental health challenges. she's diagnosed as a paranoid schizophrenic. her own mother is asking for the public to be on alert. >> pray and if someone sees them, contact police. >> reporter: on our twitter page and wusa 9, we have set up pictures of the mother and two young children. if you want to help find them, hit retweet. >>> arlington police investigating an abd