A 28-year-old man was shot inside a building on Gates Avenue near Tompkins Avenue Wednesday afternoon before the shooter turned the gun on himself during a standoff with the NYPD, police said.  View Full Caption Danny Potts

BED-STUY — A man suspected of shooting another man in a Gates Avenue building during a "landlord dispute" turned the gun on himself after being barricaded inside an apartment for several hours Wednesday afternoon, police said. 

Officers responded to the scene to find a 28-year-old man shot twice on the third floor of 565 Gates Ave.  near Tompkins Avenue at about 1:58 p.m., an NYPD spokeswoman said. 

The suspected shooter, a 32-year-old man, barricaded himself on the fourth floor but was later found with a self-inflicted gunshot wound to the head, police said. 

"We tried to make contact and identify his location inside.  Eventually we came upon him in the rear bedroom with a self-inflicted gunshot wound to the head and two firearms," ESU Deputy Chief Vincent Giordano said at the scene. " We administered first aid immediately and got him down to EMS who took over outside." 

The 32-year-old was taken to Kings County Hospital in critical condition, while the 28-year-old was taken to the same hospital with non-life-threatening injuries, authorities said. 

It was not immediately clear if the victim or shooter was the landlord of the building.