Serial killer Peter Tobin has been questioned again by police in Edinburgh over more alleged sex crimes, it emerged today.

Detectives say he was interviewed yesterday in relation to his suspected involvement in "serious sexual crimes in Scotland".

Earlier, Sussex Police ruled out any further crimes linked to serial killer Peter Tobin at a house in Brighton where he used to live.

Search teams and forensic archaeologists have spent 15 days excavating the garden and basement of the property.

They had previously ruled out any offences at another house in nearby Portslade.

Tobin is serving three life sentences for killing Angelika Kluk, Vicky Hamilton and Dinah McNicol.

Dinah was 18 years old when she went missing in August 1991 on the way home to Tillingham from a music festival in Hampshire.

Her body was found 16 years later in Margate, wrapped in heavy-duty refuse bags and buried under concrete.

The corpse of a second teenager - Falkirk schoolgirl Vicky Hamilton - was found just metres away in the same back garden.