The hunt for Leah Croucher - police visit 4,000 homes
Police say they have visited over 4,000 homes in their hunt for missing teenager Leah Croucher.
Leah , who's 19 and from Milton Keynes, was last seen by her family on Valentine's Day. She was captured on CCTV in Buzzacott Lane the next day. Searches have been carried out at a nearby lake.
Her mum has urged her to let them know she is safe. Thames Valley Police say they have more than 50 officers and staff involved in the search for her.