An 80-year-old man was killed and two others wounded in a triple stabbing on Staten Island Friday night, according to police and sources.

The violence erupted at 43 Sunnyside Terrace around 4:40 p.m., possibly following a dispute between neighbors, according to sources.

Three victims with stab wounds were found at the scene, including an 80-year-old man who died from his injuries, police and sources said.

The two other victims, both males, were taken to Richmond hospital. One was in critical condition and the other in stable condition, according to police.

One person of interest was taken into police custody, cops said.

A knife was recovered at the scene, according to sources.