Passengers on Glasgow's subway have been scanned by police with mobile metal detectors as part of an operation to tackle knife crime.
The detectors were used to prevent knife crime
British Transport Police officers targeted Ibrox station for the operation on Friday evening.
They used portable walk-through archway metal detectors, similar to those used at airports, during and hand held devices to detect knives.
Officers said the addition of metal detectors was "extremely useful"
As part of Operation Shield the metal detectors can be deployed anywhere in the country.
It has been successful in removing hundreds of knives and other weapons from the railway since it was first introduced.
Donnie MacLeod, SPT's Head of Security welcomed the operation on the subway: "We take the safety of the travelling public very seriously and, working in partnership with BTP, we are continually improving our security measures.
"Metal detectors add to developing plans to increase vigilance in every area of our operations.
"Unfortunately there are no guarantees, but people should be reassured that we're doing all we can to make sure their journey is as safe as possible."
Supt Ronnie Mellis, Area Commander for the Scottish area of BTP said: "The metal detectors have already proved to be an extremely useful additional tool in detecting and deterring anyone who thinks they can carry weapons on the rail network.
"We are pleased that we are now able to work with Strathclyde Partnership for Transport (SPT) staff to ensure members of the public can travel without disruption or the fear of becoming a victim of crime."