A 23-year-old man has been arrested by police investigating a "serious incident" at a cemetery in Lurgan.
Police, paramedics and the Air Ambulance attended the scene at St Coleman's Graveyard in the town on Monday afternoon.
There was a large funeral in the area and reports of people being stabbed.
Reports of a serious incident in St Colman's Graveyard in Lurgan. Police and Ambulances in attendance.— John O' Dowd (@JohnODowdSF) February 12, 2018
"I want to first of all condemn the multiple stabbings. Three people are currently being treated for their injuries at Craigavon Area Hospital. That is absolutely unacceptable but the fact that this was at a funeral is all the more concerning," said MLA John O'Dowd.
"Anyone with any information should report it to the PSNI.
"I also want to appeal for calm as emergency services at the scene work to bring the situation under control. People should avoid the North Circular Road area.
"In the coming days we will meet the PSNI regarding this incident."
SDLP Upper Bann MLA Dolores Kelly also condemned the incident.
She said: "This is a horrific incident - I wholly condemn those responsible. I cannot believe that something like this would happen in Lurgan and in particular at a funeral.
"My thoughts are with all of those recovering at Craigavon Area Hospital.
"I urge anyone with any information to come forward to the police immediately. I will be speaking with the PSNI to get further information, but in the meantime the public should remain calm and get in touch if they require any assistance. This is a particularly shocking and frightening incident."
A PSNI spokesperson said: "Police investigating a disturbance in the North Circular Road area of Lurgan this afternoon, Monday, 12 February, have arrested a 23-year-old man. He is currently in custody."
Earlier police said: "Police are attending a disturbance in the North Circular Road area of Lurgan involving a large number of people. The NIAS are also at the scene. The incident is ongoing. Enquiries are at a very early stage."