There is a large police presence at a guest house in Norwich Road, Ipswich, following an assault.
Witnesses described police vehicles, as well as an ambulance, at the Beaumont Guest House, opposite Glyn Hopkin Nissan and Tesco.
At least seven emergency services vehicles were there, including police and ambulances, and the air ambulance landed nearby and took off in the direction of the hospital.
Witnesses saw police standing guard at the entrance to the guest house.
A spokeswoman for Suffolk police said they were called at about 4.50pm to reports of a male being assaulted there.
A police statement said: "Emergency services are currently at the scene after a man was assaulted within an address in Norwich Road, Ipswich.
"Road closures and a cordon have been put in place to allow for an investigation to take place."
There is no information yet on the extent of the person's injuries.
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