Detectives have named a missing 19-year-old woman - who police fear has been murdered - as Amelia Arnold.
Police and scene-of-crime specialists are examining a property in Hadrian's Walk in Stevenage.
Witnesses who may have seen suspicious activity at the address between Wednesday and Friday are also being asked to come forward.
More top news
At a reception tonight at the Labour Party conference, our correspondent Emily Morgan believes she saw a glimpse of formidable Team Miliband
Performers faced the judges once again, this time with the added pressure of impressing a packed Wembley Arena.
Over 2,000 People's Climate March protests have taken place in 166 countries ahead of a major UN conference on climate change.