Detectives investigating the death of a Warwickshire teenager said they were delighted with the response to a television appeal for information.
Warwickshire Police said officers had received a number of "interesting" calls as well as one they described as "significant" in connection with their investigation into the death of Jack Macleod, from Leamington Spa.
The 17-year-old, also known as Jack Fisher, vanished in early December. Police pulled his body from the River Leam on January 3.
A reconstruction of the teenager's disappearance was featured on the BBC Crime-watch programme on Tuesday.
A 17-year-old man arrested in December on suspicion of murder has had his bail extended pending further inquiries.