A murder probe is under way after the bodies of two women were found in what police believe to be a massage parlour.
Forensic teams are carrying out an examination of the scene
The bodies were discovered in the early hours of Sunday in a house in the centre of Shrewsbury. Both women had suffered "severe" head injuries.
Officers have closed off the Welsh Bridge and parts of Frankwell.
One of the women was in her 20s, the other was in her 40s; neither has yet been identified. Post mortems are due to take place on Sunday or Monday.
More than 40 officers and staff are involved in the investigation.
Det Supt Andy Rowsell said: "Both victims had severe head injuries but until a post mortem has been carried out, it's not possible to speculate on the cause of death.
"This is obviously an horrific incident and I am anxious to hear from anyone who can help the investigation.
"We will be seeking to establish a possible motive and build up a picture of the circumstances leading up to these deaths.
"This is obviously a major inquiry and I would urge anyone with information which might assist us, to contact the murder incident room at Shrewsbury Police Station without delay."
Passing police car
The alarm was raised by two members of the public who flagged down a passing police vehicle, he said.
The murder location is a commercial premises whose business is registered as a health studio but officers believe it may have been used as a massage parlour.
A detailed forensic examination of the premises is being carried out.
Police are checking CCTV footage from cameras in the Frankwell area.
The stretch of Frankwell from the entrance to the car park up to Frankwell roundabout remains closed and diversions are in operation.