Emergency services have been called to attend an “ongoing incident” at an industrial estate in Aberdeen.
Three fire appliances were sent to the Royal Mail delivery centre in Wellington Circle when the alarm was raised at 6.43pm.
A fire service spokeswoman said: “We were asked to attend by the Scottish Ambulance Service in response to reports of someone feeling unwell.
“We still have three appliances at the scene.”
Police were also asked to attend.
A police spokesman said: “We are in attendance at an ongoing incident.”