Several people have been taken to hospital after they became unwell in a house in Belfast due to potential contact with a noxious substance.
Police remain at the incident at Damascus Street in the south of the city.
A spokesperson for the PSNI said: "Four people were taken to hospital and a number of police officers, as a precaution, have also been taken to hospital. It follows potential contact with a possibly noxious substance in the property."
The PSNI said their conditions are "not life-threatening".
"Specialist colleagues are conducting checks and there is no wider risk to the public at this time," a spokesperson added.
A spokesperson for the NI Ambulance Service said: "The Northern Ireland Ambulance Service received a number of 999 calls shortly after 17:00 on Tuesday 30 September following reports of an incident in the Damascus street area.
"NIAS despatched four Emergency Crews to the incident.
"Following assessment and initial treatment at the scene, four patients was taken to the Riyal Victoria Hospital."
A spokesperson for Northern Ireland Fire and Rescue Service (NIFRS) said crews from Central, Cadogan, Lisburn and Dromore initially attended, supported by five officers.
"Crews utilised detection and monitoring equipment to assist in resolving the incident," it said.
"Crews have now left the scene."
