Searches are under way after a man was reported missing in the River Tay.
Emergency services were called to a report of three men in the water in Perth at about 7.45pm on Thursday.
Two men were traced and were checked over by the Scottish Ambulance Service.
Searches continued at Moncrieffe Island in the area on Friday.
Police, mountain rescue, the air support unit and Scottish Fire and Rescue Service were among those involved.
Tay Street has been closed in both directions, from Marshall Place to Canal Street, for motorists and pedestrians.
Police have asked people to avoid the area.
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