Police search for missing 21-year-old mum and baby boy, last seen in Sandgate Police are looking for this 21-year-old woman and her baby boy, who were last seen in Keogh Street in Sandgate about 2pm on Tuesday. A YOUNG mother and her nine-week-old baby have gone missing from their home north of Brisbane. The 21-year-old woman and her baby boy were last seen in Keogh Street in Sandgate about 2pm on Tuesday and have not been in contact with friends or family since. Police believe the missing 21-year-old, whose name has not been released, could be travelling with a 24-year-old man. A Queensland Police Service media spokesman would not confirm the relationship between the man and the 21-year-old woman. It is further believed the missing woman is travelling in a silver Mitsubishi Magna sedan with possible registration plates 521SPN. She is described as Caucasian in appearance, 150cms tall, slim build, sandy hair with blue eyes. If you have any information, please contact Crime Stoppers on 1800 333 000.