Police have made an emergency declaration under the Public Safety Preservation Act (PSPA) due to an ongoing incident at Ipswich.
Around 4am this morning, police were called to an address on Roderick Street to conduct a welfare check.
Specialist police and general duties officers are continuing discussions with a male at that address.
Boundaries are in place between Warwick Road, Roderick Street and Limestone Street.
Members of the public have been asked to avoid the area at this time.