UPDATED: Armed Person Barricaded Inside Central Street Home in Custody [PHOTOS]

UPDATE 11:41 P.M.

S.W.A.T. teams and Stoneham Police blocked off the Central and Elm Streets area in Stoneham on Monday night responding to a report of an armed man barricaded in a Central Street home, who is now in police custody.

A witness, who was evacuated from her apartment along with two others, said there was an "unwanted guest" with either a gun or knife inside the three-family home at 83 Central St. State Police later confirmed the suspect's weapon was a knife.

Shortly before 11:30 p.m., radio reports indicated that the S.W.A.T. team entered the home and took the suspect into custody. The suspect, who a witness described as a white man older than 50, was not immediately identified by Stoneham Police while the investigation is ongoing.

Jamie Kergaravat, 26, of 94 William St., said he heard the suspect "talking nonsense the whole time" with a negotiator using a phone and also yelling down to police from the second floor. He also watched the S.W.A.T. team quietly enter the rear of the home before swiftly apprehending the suspect.

In the 23 years he's lived in Stoneham, Kergaravat said he'd never seen anything like what transpired Monday night near his home. Several other witnesses also echoed Kergaravat's sentiment.

The barricade was in place shortly before 9:30 p.m. Some of the police departments on scene included Lowell, a K-9 unit from Medford, State Police, Watertown and Winchester.

Stoneham Police had requested the NEMLEC S.W.A.T. team and law enforcement teams staged at the middle school on Main Street, according to Twitter accounts that monitor public safety radio channels.