A potentially suicidal suspect who contacted the SFPD with the alleged intent of inflicting harm upon himself and others was arrested Saturday evening after an intense, six-hour standoff that closed UN Plaza and several streets in the Civic Center vicinity Saturday afternoon.

The suspect ultimately surrendered without incident just after 6 p.m., as the SFPD's spokesperson Officer Carlos Manfredi reported, about six hours after the incident first was reported.

As CBS 5 reports, multiple buildings were evacuated in the area, and the individual arrested was someone who had "threatened suicide in the past."

SF Gate has multiple photos from the incident, and they say the suspect was a man in his 40's.

Per SF Gate, during the afternoon, "The police also banned overflights by news helicopters, worried that if the man saw himself being filmed, he would commit suicide."

Concerts happening at Bill Graham Auditorium and Davies Symphony Hall went on as scheduled, though the drama went on from about 12:20 p.m. until just after 6 p.m.

According to Officer Manfredi, "This is a person that was in crisis. He was down and out. He was looking only at one resolution, and after speaking with him, our negotiators talking with him were able to convince him that his life didn’t have to end this way.”

If someone you know exhibits warning signs of suicide: do not leave the person alone; remove any firearms, alcohol, drugs or sharp objects that could be used in a suicide attempt; and call the U.S. National Suicide Prevention Lifeline at 800-273-TALK (8255) or take the person to an emergency room or seek help from a medical or mental health professional.