Detective Superintendent Roy Lambert, who is heading the hunt for the 17-year-old, said that he was "extremely concerned" following reports from people who heard screams and the sound of a car driving off near the spot and around the time where the sixth-former was last seen. No one reported the screams because people believed they were just the sound of youngsters messing around.
Miss Hall, who is 5ft 1in and blonde, vanished while walking from a nightclub in Felixstowe, Suffolk, to her home in Trimley St Mary two miles away. She made the journey with a girlfriend who left her a few hundred yards from her home at 2.30am on Sunday.
Detectives are also investigating the rape of a woman of 19 near the Bandbox nightclub, where Miss Hall and her friend had been dancing, 10 days ago. Det Supt Lambert said he could not rule out the possibility that the attack was linked to Miss Hall's disappearance. But he stressed that there were no obvious similarities.
Police were in the club on Saturday as part of their investigation into the rape. Det Supt Lambert said at least one officer remembered seeing Miss Hall in the club.
Staff had warned club-goers not to walk home because of the attack. But Miss Hall's friend said that they decided to walk because they did not have a lot of money. Mr Hall said his daughter had always caught a taxi or rung home for a lift before.Reuse content