The garden of a home where killer Christopher Halliwell is believed to have lived is being searched by police.
Officers are understood to be digging at two properties in Broad Street, Swindon.
Halliwell was jailed for life last year for the 2003 murder of Becky Godden, having already been convicted of killing Sian O’Callaghan in 2011.
Wiltshire Police said the excavation was related to new intelligence that the force had received.
A police spokesperson said: “Specialist officers are currently carrying out excavation work within the gardens of two properties within Broad Street as part of an ongoing investigation being carried out by the Brunel Major Crime Investigation Team.
“This relates to intelligence that the force has received.
“We are unable to comment further at this time.”