NEW YORK (CBSNewYork) – A rent dispute may have led to a violent altercation in Brooklyn, sources tell CBS2.

Police say two suspects hit a 47-year-old man in the face and pushed him down the stairs around 3 p.m. Sunday at an apartment on Eighth Avenue near 58th Street in Sunset Park.

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One of the attackers allegedly stole the victim’s cellphone and smashed it, while the other pointed a gun at his head and threatened to shoot.

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The suspects took off in an unknown direction.

Police said the man refused medical attention for cuts and bruises.

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Anyone with information about the attack is asked to call NYPD’s Crime Stoppers hotline at 1-800-577-TIPS (8477) or 1-888-57-PISTA (74782) for Spanish. You can also submit a tip via the Crime Stoppers website, by Tweeting @NYPDTips or by texting a tip to 274637.